Adding CMake visibility policy setting

This policy setting will silence a warning when using with a visibility settings on targets. Due to the forced `cmake_minimum_version`, policy settings in CMakeLists calling this one (including the main CMakeLists) are lost, forcing the change to be made here.

Another AppVeyor move

Fix problem installing gtest when gmock enabled

Fix a bug deciding whether to enable the option to install Google Test
caused by one of the dependent option dependencies not being defined
yet.

Fixes #1198; impossible to install Google Test if Google Mock is built.

Changing Build Status AppVeyor badge with AppVeyor ownership change

Add support for pkgconfig

enable null detection on Solaris Studio 12u4+

Add links to IRC channel and Google Group

Fix the link to the float comparison article

Documentation change to add related open source project

Fix small typo in Cookbook: SeArrayArgument

 Fix library install destinations

Update Primer.md

Fix or condition typo ( '|' -> '||' )

Fix a few documentation nits in the mock dummies guide

remove documentation of former versions - it's available in the commit history

Fix background color in ColoredPrintf

Minor style fixes

Adding Bazel build to googletest (initial version ) 

Remove comments

Typos, punctuation & broken links

add note about different definitions of Test Case

Modify library install destinations to install .dll's to the correct
location (`bin`, not `lib`), and to install other artifacts to the
correct platform-dependent location by using GNUInstallDirs. This is
required for some distributions (e.g. Fedora) and will fix an issue that
otherwise requires those distributions to patch the upstream sources.
Also, add options to suppress installation, which may be useful for
projects that embed Google Test.

Since Google Test is trying to support archaic versions of CMake, a
brain-dead fallback (which requires that the user set either LIB_SUFFIX
or CMAKE_INSTALL_LIBDIR themselves) is included for versions that
predate GNUInstallDirs.

Fixes #1161.
Co-Authored-By: d3x0r <d3x0r@users.noreply.github.com>