Matrix Client-Server tag API

Number of APIs: 3

1. user/{user Id}/rooms/{room Id}/tags-{tag} - Add a tag to a room. PUT {{baseUrl}}/user/:userId/rooms/:roomId/tags/:tag

2. user/{user Id}/rooms/{room Id}/tags-{tag} - Remove a tag from the room. DELETE {{baseUrl}}/user/:userId/rooms/:roomId/tags/:tag

3. user/{user Id}/rooms/{room Id}/tags - List the tags for a room. GET {{baseUrl}}/user/:userId/rooms/:roomId/tags