scouting: Add an endpoint for populating the match schedule

This patch combines the scraping library with the scouting webserver.
There's now also a new end point for the web page (or debug CLI tool)
to ask the server to fetch the match list. The end point is
`/requests/refresh_match_list`.

All the tests are updated. The `cli_test` downloads a 2016 ny_tr match
list that I downloaded from TBA. It should be a decent integration
test as it uses representative data.

Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
Change-Id: I6c540590521b00887eb2ddde2a9369875c659551
diff --git a/scouting/webserver/BUILD b/scouting/webserver/BUILD
index 66db8e8..745852a 100644
--- a/scouting/webserver/BUILD
+++ b/scouting/webserver/BUILD
@@ -8,6 +8,7 @@
     visibility = ["//visibility:private"],
     deps = [
         "//scouting/db",
+        "//scouting/scraping",
         "//scouting/webserver/requests",
         "//scouting/webserver/server",
         "//scouting/webserver/static",