Fix windows build and add windows CI #134

Job	Run time
tests	20s
cmake-integration-tests (instrumentation, ubuntu-latest)	1m 12s
bazel-integration-tests (walltime, codspeed-macro)	1m 5s
cmake-integration-tests (walltime, codspeed-macro)	1m 17s
cmake-integration-tests (off, ubuntu-latest)	33s
bazel-integration-tests (instrumentation, ubuntu-latest)	1m 13s
bazel-integration-tests (off, ubuntu-latest)	18s
windows-cmake-build (walltime)	52s
windows-bazel-build (off)	1m 5s
windows-cmake-build (off)	56s
windows-bazel-build (walltime)	1m 16s
	10m 7s

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