Adding RFC for test timeout configured via runsettings. (#40)

Author: singhsarab

RFCs/008-TestCase-Timeout.md

@@ -0,0 +1,21 @@
+# RFC 008 - Test case timeout via runsettings
+
+## Motivation
+User should be able to configure global test case timeout for all the test cases part of the run. 
+
+### Proposed solution
+Make test case timeout configurable via TestTimeout tag which is part of the adapter node in the runsettings.
+
+Here is a sample runsettings: 
+```
+	<Runsettings> 
+		 <MSTestV2> 
+			<TestTimeout>5000</TestTimeout>   
+		 </MSTestV2> 
+	</Runsettings> 
+```
+
+### Honoring the settings 
+- If no settings are provided in runsettings, default timeout is set to 0. 
+- Timeout specified via Timeout attribute on TestMethod takes precedence over the global timeout specified via runsettings. 
+- For all the test methods that do not have Timeout attribute, timeout will be based on the timeout specified via runsettings.