Fix windows build and add windows CI #136

Job	Run time
tests	15s
bazel-integration-tests (walltime, codspeed-macro)	1m 10s
bazel-integration-tests (off, ubuntu-latest)	25s
windows-bazel-build (off)	1m 10s
cmake-integration-tests (off, ubuntu-latest)	58s
cmake-integration-tests (instrumentation, ubuntu-latest)	1m 20s
windows-cmake-build (off)	1m 58s
bazel-integration-tests (instrumentation, ubuntu-latest)	1m 7s
windows-bazel-build (walltime)	2m 3s
cmake-integration-tests (walltime, codspeed-macro)	1m 59s
windows-cmake-build (walltime)	2m 19s
	14m 44s

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