Fix usermod library builds

Manage include folders via a second platformio script, fixing builds and
removing all the extra boilerplate from usermod library.json files.

pio-scripts/fixup_usermods.py

@@ -0,0 +1,17 @@
+Import('env')
+
+# Patch up each usermod's include folders to include anything referenced by wled
+# This is because usermods need to include wled.h
+lib_builders = env.GetLibBuilders()
+um_deps = [dep for dep in lib_builders if "/usermods" in dep.src_dir]
+other_deps = [dep for dep in lib_builders if "/usermods" not in dep.src_dir]
+
+for um in um_deps:
+    # Add include paths for all non-usermod dependencies
+    for dep in other_deps:
+        for dir in dep.get_include_dirs():
+            um.env.PrependUnique(CPPPATH=dir)
+    # Add the wled folder to the include path
+    um.env.PrependUnique(CPPPATH=env["PROJECT_SRC_DIR"])
+       
+#raise RuntimeError("debug")

platformio.ini

@@ -115,6 +115,7 @@ extra_scripts =
   post:pio-scripts/strip-floats.py
   pre:pio-scripts/user_config_copy.py
   pre:pio-scripts/load_usermods.py
+  post:pio-scripts/fixup_usermods.py
   pre:pio-scripts/build_ui.py
   ; post:pio-scripts/obj-dump.py  ;; convenience script to create a disassembly dump of the firmware (hardcore debugging)
 

usermods/audioreactive/library.json

@@ -1,8 +1,6 @@
 {
   "name": "audioreactive",
   "build": {
-    "srcDir": ".",
-    "includeDir": "../../wled00",
     "extraScript": "override_sqrt.py"
   },
   "dependencies": [

usermods/usermod_v2_animartrix/library.json

@@ -1,11 +1,5 @@
 {
   "name": "animartrix",
-  "build": {
-    "srcDir": ".",
-    "includeDir": "../../wled00",
-    "libLDFMode": "chain+",
-    "libArchive": false
-  },
   "dependencies": {
     "Animartrix": "https://github.com/netmindz/animartrix.git#b172586"
   }    

usermods/usermod_v2_auto_save/library.json

@@ -1,8 +1,3 @@
 {
-  "name": "auto_save",
-  "build": {
-    "srcDir": ".",
-    "includeDir": "../../wled00",
-    "libLDFMode": "chain+"
-  }
+  "name": "auto_save"
 }