add hcl parser

queries/hcl/folds.scm

@@ -0,0 +1,5 @@
+[
+ (comment)
+ (block)
+ (heredoc_template)
+] @fold

queries/hcl/highlights.scm

@@ -0,0 +1,72 @@
+; highlights.scm
+
+[
+  "!"
+  "\*"
+  "/"
+  "%"
+  "\+"
+  "-"
+  ">"
+  ">="
+  "<"
+  "<="
+  "=="
+  "!="
+  "&&"
+  "||"
+] @operator
+
+[
+  "{"
+  "}"
+  "["
+  "]"
+  "("
+  ")"
+  "[*]"
+  ".*"
+] @specialChar
+
+[
+  "."
+  ","
+] @specialChar
+
+[
+  (ellipsis)
+  "\?"
+  ":"
+  "=>"
+] @special
+
+[
+  "for"
+  "in"
+] @repeat
+
+[ 
+  "if"
+] @conditional
+
+[
+  (string_lit)
+  (quoted_template)
+  (heredoc_template)
+] @string
+
+(heredoc_identifier) @namespace
+(heredoc_start) @namespace
+(template_interpolation) @statement
+(numeric_lit) @number
+(bool_lit) @boolean
+(null_lit) @constant
+(comment) @comment
+(identifier) @identifier
+
+(block (identifier) @namespace)
+(function_call (identifier) @function)
+(function_call (function_arguments) @parameter)
+(attribute (identifier) @symbol)
+
+(ERROR) @error