Add devicetree parser with queries

queries/devicetree/folds.scm

@@ -0,0 +1 @@
+(node) @fold

queries/devicetree/highlights.scm

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+(comment) @comment
+
+[
+  (preproc_include)
+  (dtsi_include)
+] @include
+
+[
+  (preproc_def)
+] @constant.macro
+
+[
+  (preproc_function_def)
+] @function.macro
+
+[
+  (memory_reservation)
+  (file_version)
+] @annotation
+
+[
+  (string_literal)
+  (byte_string_literal)
+  (system_lib_string)
+] @string
+
+(integer_literal) @number
+
+(identifier) @variable
+(node (identifier) @attribute)
+(property (identifier) @property)
+(labeled_item (identifier) @label)
+(call_expression (identifier) @function.macro)
+
+(reference) @attribute
+(unit_address) @constant
+
+[ "=" ] @operator
+[ "(" ")" "[" "]" "{" "}" "<" ">" ] @punctuation.bracket
+[ ";" ":" "," "@" ] @punctuation.delimiter

queries/devicetree/indents.scm

@@ -0,0 +1,14 @@
+[
+  (node)
+  (property)
+  (integer_cells)
+] @indent
+
+[
+  "}"
+  ">"
+] @branch
+
+[
+  (comment)
+] @ignore

queries/devicetree/locals.scm

@@ -0,0 +1,4 @@
+[
+  (node)
+  (integer_cells)
+]@scope