chore(examples): add submodule and remove LVGL examples

.clang-format

@@ -0,0 +1,26 @@
+# Arduino/C++ friendly format
+BasedOnStyle: WebKit
+
+# Indentation
+IndentWidth: 4
+TabWidth: 4
+UseTab: Never
+IndentCaseLabels: false
+
+# Braces - keep opening brace on same line
+BreakBeforeBraces: Attach
+
+# Spacing (fixed)
+SpaceBeforeParens: Never
+SpaceAfterCStyleCast: false
+PointerAlignment: Left
+
+# Line length
+ColumnLimit: 100
+
+# Includes
+SortIncludes: true
+IncludeBlocks: Regroup
+
+# Functions
+KeepEmptyLinesAtTheStartOfBlocks: false