add Irrigation-with-display by @bruxy70 to hopefully comply with license

.gitignore

@@ -7,5 +7,6 @@ secrets.yaml
 ._*
 
 # Included subfolders.
+!.vscode
 !common
-!common/**/**/**/**/**/**/**
+!common/**/**/**/**

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "3rd_party/irrigation-with-display"]
+	path = 3rd_party/irrigation-with-display
+	url = https://github.com/brianhanifin/Irrigation-with-display.git

.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+  "cSpell.ignoreWords": [
+    "espressif",
+    "pioenvs"
+  ]
+}