Add coverage

tools/telemetry/third_party/coverage/coverage/fullcoverage/encodings.py

Index: tools/telemetry/third_party/coverage/coverage/fullcoverage/encodings.py
diff --git a/third_party/pycoverage/coverage/fullcoverage/encodings.py b/tools/telemetry/third_party/coverage/coverage/fullcoverage/encodings.py
similarity index 85%
copy from third_party/pycoverage/coverage/fullcoverage/encodings.py
copy to tools/telemetry/third_party/coverage/coverage/fullcoverage/encodings.py
index 6a258d6710c4ea29444eab5de4cc28cd13c47755..699f38634f5299efbc92e82db0c31c6f20d4c695 100644
--- a/third_party/pycoverage/coverage/fullcoverage/encodings.py
+++ b/tools/telemetry/third_party/coverage/coverage/fullcoverage/encodings.py
@@ -1,3 +1,6 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt
+
 """Imposter encodings module that installs a coverage-style tracer.
 
 This is NOT the encodings module; it is an imposter that sets up tracing
@@ -6,10 +9,10 @@ instrumentation and then replaces itself with the real encodings module.
 If the directory that holds this file is placed first in the PYTHONPATH when
 using "coverage" to run Python's tests, then this file will become the very
 first module imported by the internals of Python 3.  It installs a
-coverage-compatible trace function that can watch Standard Library modules
+coverage.py-compatible trace function that can watch Standard Library modules
 execute from the very earliest stages of Python's own boot process.  This fixes
-a problem with coverage - that it starts too late to trace the coverage of many
-of the most fundamental modules in the Standard Library.
+a problem with coverage.py - that it starts too late to trace the coverage of
+many of the most fundamental modules in the Standard Library.
 
 """