CMake Nightly Date Stamp
cmTarget: Add GetFeatureAsBool method

Return the GetFeature method result converted to a boolean value.
cmGeneratorTarget: Improve GetCreateRuleVariable API

Pass the language and configuration to the method so it can return the
complete rule variable name.
Ninja: Fix Intel interprocedural optimization with static libraries

Teach cmGeneratorTarget::GetCreateRuleVariable about the IPO variant.
Return the static library IPO rule when the feature is enabled.
Merge topic 'ninja-intel-ipo' into next

b6e2e0d1 Ninja: Fix Intel interprocedural optimization with static libraries
5d12b87b cmGeneratorTarget: Improve GetCreateRuleVariable API
c2eeb08b cmTarget: Add GetFeatureAsBool method
f7654a07 CMake Nightly Date Stamp