Add coverage

tools/telemetry/third_party/coverage/lab/platform_info.py

+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt
+
+"""Dump information so we can get a quick look at what's available."""
+
+import platform
+import sys
+
+
+def whatever(f):
+    try:
+        return f()
+    except:
+        return f
+
+
+def dump_module(mod):
+    print("\n###  {0} ---------------------------".format(mod.__name__))
+    for name in dir(mod):
+        if name.startswith("_"):
+            continue
+        print("{0:30s}: {1!r:.100}".format(name, whatever(getattr(mod, name))))
+
+
+for mod in [platform, sys]:
+    dump_module(mod)