- add controller, service & reponse type for foreign assets
- update chain-config
- update docs

- In /pallets/foreign-assets/ endpoint removed `asset-info` since it is not necessary.
- In the docs removed the array notation from the `200` response of multiple endpoints (including foreign assets) since there is no outer array in the result.

- Added in the response the asset's name & symbol in human readable format.

- Retrieved metadata based on MultiLocation key obtained by asset info entries
- Changed types in IForeignAssetInfo

- Added a test (tinkernet) for foreign asset
- Added metadata & registry for Asset Hub Kusama

- Resolved conflicts by keeping both changes
- Reordered the pallets endpoints in docs so they are in alphabetical order (almost)
- Rebuilt docs

Co-authored-by: Tarik Gul <47201679+TarikGul@users.noreply.github.com>

Co-authored-by: Tarik Gul <47201679+TarikGul@users.noreply.github.com>

Co-authored-by: Tarik Gul <47201679+TarikGul@users.noreply.github.com>

Co-authored-by: Tarik Gul <47201679+TarikGul@users.noreply.github.com>

Co-authored-by: Tarik Gul <47201679+TarikGul@users.noreply.github.com>

- Replaced types to avoid type casts based on Tarik's suggestion
- Added the copyright in some files that was missing
- Updated the copyright year in some of the files

- Changed the copyright year in the files related to this PR

- Added the DOT asset in the test file (.spec)
- Added the AssetInfo and AssetMetadata for the DOT asset in the mock data (metadata currently have empty & zero values because those are the values in Asset Hub right now - to be changed)
- Added again the storageKeyMultilocation in TypeFactory since indexType is not included in InterfaceTypes (as defined in storageKey)

- Replaced PalletAssetsAssetMetadata with AssetMetadata
- Removed also Option from assetMetadata