Move the swerve_drivetrain*.fbs files to frc971/control_loop/swerve

We had ended up with multiple folders, which was irritating.

Also, get rid of the speed fields of the position message until we can
do something with them.

Change-Id: I0eb48bfa8390e361e587f5b4c6c6fc122d730e16
Signed-off-by: James Kuszmaul <jabukuszmaul+collab@gmail.com>
diff --git a/frc971/control_loops/swerve/BUILD b/frc971/control_loops/swerve/BUILD
index e411fc9..4e06932 100644
--- a/frc971/control_loops/swerve/BUILD
+++ b/frc971/control_loops/swerve/BUILD
@@ -1,3 +1,19 @@
+load("//aos/flatbuffers:generate.bzl", "static_flatbuffer")
+
+static_flatbuffer(
+    name = "swerve_drivetrain_output_fbs",
+    srcs = ["swerve_drivetrain_output.fbs"],
+    visibility = ["//visibility:public"],
+    deps = ["//frc971/control_loops:can_talonfx_fbs"],
+)
+
+static_flatbuffer(
+    name = "swerve_drivetrain_position_fbs",
+    srcs = ["swerve_drivetrain_position.fbs"],
+    visibility = ["//visibility:public"],
+    deps = ["//frc971/control_loops:control_loops_fbs"],
+)
+
 py_binary(
     name = "simulation",
     srcs = [