Fix windows build and add windows CI #113

Job	Run time
tests	27s
cmake-integration-tests (walltime, codspeed-macro)	1m 52s
cmake-integration-tests (instrumentation, ubuntu-latest)	1m 22s
windows-build (walltime)	48s
windows-build (off)	52s
bazel-integration-tests (walltime, codspeed-macro)	1m 7s
cmake-integration-tests (off, ubuntu-latest)	56s
bazel-integration-tests (instrumentation, ubuntu-latest)	1m 15s
bazel-integration-tests (off, ubuntu-latest)	31s
	9m 10s

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