Write unit tests for http2 connection

This unit test currently only tests a simple connect and settings frame
transfer, but should form the basis for more complex testing in the
future.

Tested: Unit tests pass

Change-Id: Ieb803dbe490129ec5fe99fb3d4505a06202e282e
Signed-off-by: Ed Tanous <ed@tanous.net>
diff --git a/meson.build b/meson.build
index f260f86..6184f62 100644
--- a/meson.build
+++ b/meson.build
@@ -422,6 +422,7 @@
 
 srcfiles_unittest = files(
   'test/http/crow_getroutes_test.cpp',
+  'test/http/http2_connection_test.cpp',
   'test/http/http_connection_test.cpp',
   'test/http/mutual_tls.cpp',
   'test/http/router_test.cpp',