Create a library for serving static files

It serves files that are in a given directory, and this could be
extended to html files.

In order to validate the functionality we also added a simple
`ScoutingServer` that you can `Start()` and `Stop()`.  The unit test
makes use of this. The `main` binary that ties all the components
together also makes use of this.

See the README for an overview of everything we added in this patch.

Change-Id: Id496b032d6aa70fd8502eeb347895ac52b5d1ddd
Signed-off-by: Het Satasiya <satasiyahet@gmail.com>
Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
diff --git a/scouting/webserver/static/BUILD b/scouting/webserver/static/BUILD
new file mode 100644
index 0000000..008d719
--- /dev/null
+++ b/scouting/webserver/static/BUILD
@@ -0,0 +1,21 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+go_library(
+    name = "static",
+    srcs = ["static.go"],
+    importpath = "github.com/frc971/971-Robot-Code/scouting/webserver/static",
+    target_compatible_with = ["@platforms//cpu:x86_64"],
+    visibility = ["//visibility:public"],
+    deps = ["//scouting/webserver/server"],
+)
+
+go_test(
+    name = "static_test",
+    srcs = ["static_test.go"],
+    data = [
+        "test_pages/page.txt",
+        "test_pages/root.txt",
+    ],
+    embed = [":static"],
+    deps = ["//scouting/webserver/server"],
+)