Update naming conventions

[larissakuehn]

Naming conventions are not very clear, so they should be updated and sorted more clearly:
https://github.com/RWTH-EBC/AixLib/wiki/Variable-Naming

First steps:

• Check current version of Buildings naming convention and update column
• Clear the table and only keep the following columns: meaning, aixlib, buildings, SI units (update to modelica 4.0), modelica type

[arnoldfuetterer]

Table does not exist in this version at IBPSA or Buildings anymore. Both libraries know use the naming conventions that are described in the Buildings.UsesGuide (https://simulationresearch.lbl.gov/modelica/releases/latest/help/Buildings_UsersGuide.html#Buildings.UsersGuide.Conventions)

Progress:

• added naming of sensors to namespaces site (https://github.com/RWTH-EBC/AixLib/wiki/Namespaces)
• deleted old columns with naming conventions for BuildingSystems, Annex60 and IDEAS
• updated Modelica Types of SI Units

Comments:

• Some variable names are not specified as exceptions for three character naming conventions but in Buildings.UsersGuide.Conventions
• We have to decide how we will deal with those. For now they will appear in the table. For exampe: A for Area

Work in Progress:

• update of variable names in current table

[arnoldfuetterer]

Progress:

• Namespaces page is updated. It only contains deviations and added details to the Buildings.UsersGuide conventions.
• Variable names page is deleted since it became obsolete
• Table is now used to show Existing namings vs Desired namings (exceptions form naming convention) in the AixLib library

Comments:

• table shall be completed in the long term (maybe by a python script)