v0.11.3

• Added basic DB driver Capabilities.

  Test runner now has the ability to skip tests conditionally, based on the DB driver Capabilities:

  @requireCapability(dialect='sqlite')
  async def test_run_sqlite_only(self):
      ...

• Added per-field indexes.

  When setting index=True on a field, Tortoise will now generate an index for it.

  NOTE:

  Due to MySQL limitation of not supporting conditional index creation,
  if `safe=True` (the default) is set, it won't create the index and emit a warning about it.
  
  We plan to work around this limitation in a future release.
  

• Performance fix with PyPika for small fetch queries
• Remove parameter hack now that PyPika support Parametrized queries
• Fix typos in JSONField docstring
• Added .explain() method on QuerySet.
• Add required read-only property to fields