+ Deleted the deprecated IdGenerators property.
+ Modify IdGenerators's access modifier to internal.
Renamed the SetDefaultFor method to Reset.
Merge branch 'master' into v4.x

Conflicts:
	src/TestCommon/IdGenerators.cs
Renamed IdGenerators to IdGeneratorManager.
Merge branch 'master' into v4.x
Merge branch 'master' into v4.x
Merge branch 'master' into v4.x
Merge branch 'master' into v4.x

Conflicts:
	src/TestCommon/Fixture.cs
	src/TestCommon/FixtureDependencies.cs
	src/TestCommon/TestCommon.csproj
	test/TestCommon.UnitTest/TestCommon.UnitTest.csproj
[major] Removed the optional parameter values in the constructor of the RandomIdGenerator class.
Added the overloaded constructor to the RandomIdGenerator class.
Merge branch 'master' into v4.x

Conflicts:
	src/TestCommon/Fixture.cs
	src/TestCommon/FixtureDependencies.cs
Merge branch 'master' into v4.x
[major] Removed the optional parameter values in the constructor of the SequentialIdGenerator class.
Merge branch 'master' into v4.x
Merge branch 'master' into v4.x
Merge branch 'master' into v4.x

Conflicts:
	src/TestCommon/Fixture.cs
	src/TestCommon/FixtureConfigs.cs
	src/TestCommon/IFixtureConfigs.cs
[major] Deleted the deprecated members and types.
Merge branch 'master' into v4.x
[major] Deleted the deprecated ISetupFixtureClass and ISetupFixture interfaces.