Add flexmeasures show CLI commands

[nhoening]

Closes #338

[nhoening]

Showcasing how it looks like:

± flexmeasures show accounts
[FLEXMEASURES][2022-01-27 13:40:21,602] INFO: Loading config from /home/nicolas/.flexmeasures.cfg ...
All accounts on this FlexMeasures instance:
 
  Id  Name                   Assets
----  -------------------  --------
   1  Seita                      70
   2  A1                          0
   3  V2G@Home Living Lab         5
   4  Cwi                         1
   5  Some company                1
(sempras) nicolas at xps13 in ~/workspace/seita/flexmeasures on cli-show-data-commands (21 untracked)
± flexmeasures show account --account-id 5
[FLEXMEASURES][2022-01-27 13:40:37,910] INFO: Loading config from /home/nicolas/.flexmeasures.cfg ...
==============================
Account Some company (ID:5):
==============================

Account has no roles.

All users:
 
  Id  Name    Email            Last Login                  Roles
----  ------  ---------------  --------------------------  -------
  34  Summer  summer@seita.nl  2022-01-13 15:24:49.974231

All assets:
 
  Id  Name                  Type      Location
----  --------------------  --------  ------------
  84  SomeGenericTestAsset  building  (10.0, 12.0)
(sempras) nicolas at xps13 in ~/workspace/seita/flexmeasures on cli-show-data-commands (21 untracked)
± flexmeasures show roles                 
[FLEXMEASURES][2022-01-27 13:40:51,695] INFO: Loading config from /home/nicolas/.flexmeasures.cfg ...
Account roles:

  Id  Name      Description
----  --------  -------------
   1  MDC
   2  Prosumer

User roles:

  Id  Name         Description
----  -----------  -----------------------------------------------
   1  admin        An admin has access to all assets and controls.
   2  Prosumer     USEF defined role of asset owner.
   3  MDC          USEF defined role of Meter Data Company.
   4  task-runner  Process running BVP-relevant tasks.
   5  anonymous    An anonymous user cannot make edits.
   6  CPO          OCPI defined role of Charging Point Operator.
(sempras) nicolas at xps13 in ~/workspace/seita/flexmeasures on cli-show-data-commands (21 untracked)
± flexmeasures show asset-types
[FLEXMEASURES][2022-01-27 13:41:07,004] INFO: Loading config from /home/nicolas/.flexmeasures.cfg ...
  Id  Name               Description
----  -----------------  -------------------
   1  solar              solar panel
   2  wind               wind turbine
   3  battery            stationary battery
   4  building           building
   5  one-way_evse       one-way EVSE
   6  two-way_evse       two-way EVSE
   7  day_ahead          day-ahead market
   8  tou_tariff         time-of-use tariff
   9  temperature        ambient temperature
  10  wind_speed         wind speed
  11  radiation          solar irradiation
  19  day-ahead market
  23  transmission zone
  24  EV
(sempras) nicolas at xps13 in ~/workspace/seita/flexmeasures on cli-show-data-commands (21 untracked)
± flexmeasures show asset --asset-id 34
[FLEXMEASURES][2022-01-27 13:46:12,468] INFO: Loading config from /home/nicolas/.flexmeasures.cfg ...
===================================================
Asset millennium-seoul-hilton---charger-1 (ID:34):
===================================================

Type          Location             Attributes
------------  -------------------  ------------------------------------------------
two-way_evse  (37.5557, 126.9761)  display_name:Millennium Seoul Hilton - charger 1
                                   min_soc_in_mwh:0.0
                                   max_soc_in_mwh:0.0
                                   soc_in_mwh:0.0
                                   soc_datetime:None
                                   soc_udi_event_id:None
                                   can_curtail:False
                                   can_shift:True
                                   correlations:['temperature']

All sensors in asset:
 
  Id  Name                                 Unit    Resolution    Timezone    Attributes
----  -----------------------------------  ------  ------------  ----------  ------------------------------------------------
  60  millennium-seoul-hilton---charger-1  MW      0:15:00       UTC         display_name:Millennium Seoul Hilton - charger 1
                                                                             latitude:37.5557
                                                                             longitude:126.9761
                                                                             capacity_in_mw:0.05
                                                                             market_id:131
                                                                             is_consumer:True
                                                                             is_producer:True
                                                                             daily_seasonality:True
                                                                             weekly_seasonality:True
                                                                             yearly_seasonality:True

``