mock_cloud_firestore 0.0.20

Easier way to mock cloud_firestore, without using `Firestore.channel.setMockMethodCallHandler`

[0.0.20]

• merge Decode timestamps

[0.0.19]

• fix: document id referencing

[0.0.18]

• add: support for Timestamp encoding

[0.0.17]

• fix: Query.where override

[0.0.16]

• merge ref feature

[0.0.15]

• fix: Query.where override

[0.0.14]

• merge nested 'where' feature

[0.0.13]

• merge remove from server
• implement removed on snapshots

[0.0.12]

• merge Support for exists, documentID and reference

[0.0.11]

• chore run flutter format

[0.0.10]

• impl docRef.snapshots() support

[0.0.9]

• add where support

[0.0.8]

• merge update dependencies

[0.0.7]

• Version bump

[0.0.6]

• merge update dependencies

[0.0.5]

• implemented getDocuments

[0.0.4]

• new simulateModifyFromServer to simulate modifying a document from server
• new simulateRemoveFromServer to simulate removing a document from server

[0.0.3]

• chore

[0.0.2]

• implemented add
• added documentation and examples
• new simulateAddFromServer to simulate adding a document from server

[0.0.1]

• initial release.