Add windows build script (#1540)

Signed-off-by: Ana Hobden <operator@hoverbear.org>

build.ps1

@@ -0,0 +1,16 @@
+# For `--version`
+$PD_PKG = "github.com/pingcap/pd"
+$GO_LDFLAGS = "-X `"$PD_PKG/server.PDReleaseVersion=$(git describe --tags --dirty)`""
+$GO_LDFLAGS += " -X `"$PD_PKG/server.PDBuildTS=$(date -u '+%Y-%m-%d_%I:%M:%S')`""
+$GO_LDFLAGS += " -X `"$PD_PKG/server.PDGitHash=$(git rev-parse HEAD)`""
+$GO_LDFLAGS += " -X `"$PD_PKG/server.PDGitBranch=$(git rev-parse --abbrev-ref HEAD)`""
+
+# Output binaries
+go build -ldflags $GO_LDFLAGS -o bin/pd-server.exe cmd/pd-server/main.go
+echo "bin/pd-server.exe"
+go build -ldflags $GO_LDFLAGS -o bin/pd-ctl.exe tools/pd-ctl/main.go
+echo "bin/pd-ctl.exe"
+go build -o bin/pd-tso-bench.exe tools/pd-tso-bench/main.go
+echo "bin/pd-tso-bench.exe"
+go build -o bin/pd-recover.exe tools/pd-recover/main.go
+echo "bin/pd-recover.exe"