[Deprecation] remove storage getters (pallet::getter) usage from all pallets

[smohan-dw]

This issue tracks the removal of pallet::getter in all pallets, as per paritytech/polkadot-sdk#223. The preferred syntax is Key::::get().

• asset
• authority-membership
• chain-space
• did
• did-name
• identity
• membership
• network-membership
• network-score
• node-authorization
• offences
• schema
• statement

[vatsa287]

Changes yet to be made on,

• test-utils/runtime
• runtime/authorities

Will open a new PR for it.

[kartikaysaxena]

Can I collaborate on this @vatsa287 ?

[vatsa287]

Can I collaborate on this @vatsa287 ?

@kartikaysaxena sure!
I have added a TODO in test-utils/runtime where the change needs to be made.
Currently the issue is type resolution of generic types is not happening.