[Spaces] SDK: Support room type

[SBiOSoftWhare]

Support MSC1840

TODO:

• Add RoomType enum
• Add a RoomType property on MXRoomCreateContent. Note: Use "org.matrix.msc1772.type" key instead of "m.room.type" atm.
• Add a RoomType on MXRoomSummary

Note: If there is no "org.matrix.msc1772.type" field the RoomType is Room by default

Here just an example of creation_content with a Space type:

  "creation_content": {
    "org.matrix.msc1772.type": "org.matrix.msc1772.space"
  }