DF-291 added saving screenshots to db
DF-291 autotesting, added missing headers for mongodb gridfs
DF-291 autotesting, fixed compilation error on mac
DF-291 rebuilt mongodb for ios and macos
DF-291 autotesting: fixed screenshots, fixed writing to db
Merge branch 'feature-testing' of https://github.com/dava/dava.framework into feature-testing

Conflicts:
	Sources/Internal/Autotesting/AutotestingSystem.cpp
	Sources/Internal/Autotesting/AutotestingSystem.h
Test Multiplayer API
Increase timeout for Multiplayer test