cmake: updated to 3.14.2

Changes in 3.14.2 since 3.14.1:
* MSVC: Fix MSVC_TOOLSET_VERSION for VS 2019 v142 toolset
* ARMCC: Do not identify ARMClang as ARMCC
* IRSL: Fix discovery of VS 2019 v142 toolset redistributables
* Tests: Clarify hand-written cases in RunCMake.ParseImplicitIncludeInfo
* Tests: Teach RunCMake.ParseImplicitIncludeInfo to match output by regex
* Fix implicit include directory extraction for adaptive relative paths
* Xcode: Factor out duplicate source group code into lambda
* Xcode: Avoid mutating App Bundle targets during generation
* cmake-gui: Fix icon overlay on windows
* Modules/CTest: Fix SubmitURL
* cmake-gui: Fix theme on Windows with Qt >= 5.10

(adam)