Rename display modules to dir_pwexperimental_*

This will allow for easier migration to upstream Pigweed

Change-Id: I473dba11344ed87e92f545f36b696a9bda1d81ff
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/201070
Reviewed-by: Armando Montanez <amontanez@google.com>
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Pigweed-Auto-Submit: Anthony DiGirolamo <tonymd@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/applications/terminal_display/BUILD.gn b/applications/terminal_display/BUILD.gn
index e2856f6..75b8b3f 100644
--- a/applications/terminal_display/BUILD.gn
+++ b/applications/terminal_display/BUILD.gn
@@ -24,9 +24,9 @@
 
 pw_source_set("text_buffer") {
   public_deps = [
-    "$dir_pw_color",
-    "$dir_pw_math",
     "$dir_pw_result",
+    "$dir_pwexperimental_color",
+    "$dir_pwexperimental_math",
   ]
   sources = [
     "text_buffer.cc",
@@ -40,18 +40,18 @@
     ":text_buffer",
     "$dir_app_common",
     "$dir_pw_board_led",
-    "$dir_pw_color",
     "$dir_pw_containers:vector",
-    "$dir_pw_display",
-    "$dir_pw_draw",
-    "$dir_pw_framebuffer",
     "$dir_pw_log",
-    "$dir_pw_math",
     "$dir_pw_random",
     "$dir_pw_ring_buffer",
     "$dir_pw_spin_delay",
     "$dir_pw_string",
     "$dir_pw_sys_io",
+    "$dir_pwexperimental_color",
+    "$dir_pwexperimental_display",
+    "$dir_pwexperimental_draw",
+    "$dir_pwexperimental_framebuffer",
+    "$dir_pwexperimental_math",
   ]
   remove_configs = [ "$dir_pw_build:strict_warnings" ]
 
@@ -80,8 +80,8 @@
 pw_test("text_buffer_test") {
   deps = [
     ":text_buffer",
-    "$dir_pw_color",
     "$dir_pw_unit_test",
+    "$dir_pwexperimental_color",
   ]
   sources = [ "text_buffer_test.cc" ]
 }