feat(ipkg): add parser and queries (#7277)

Co-authored-by: ObserverOfTime <chronobserver@disroot.org>

queries/ipkg/highlights.scm

@@ -0,0 +1,56 @@
+; Keywords
+"package" @keyword.import
+
+[
+  "authors"
+  "maintainers"
+  "license"
+  "brief"
+  "readme"
+  "homepage"
+  "sourceloc"
+  "bugtracker"
+  "opts"
+  "sourcedir"
+  "builddir"
+  "outputdir"
+  "prebuild"
+  "postbuild"
+  "preinstall"
+  "postinstall"
+  "preclean"
+  "postclean"
+  "version"
+  "langversion"
+  "modules"
+  "main"
+  "executable"
+  "depends"
+] @keyword
+
+[
+  "="
+  (version_range_op)
+] @operator
+
+"," @punctuation.delimiter
+
+; Field values
+(string_value) @string
+
+(boolean_value) @boolean
+
+; Version numbers and ranges
+(version_number) @string.special
+
+[
+  (dependency_item)
+  (package_name)
+  (module_name)
+] @module
+
+; Comments
+[
+  (line_comment)
+  (block_comment)
+] @comment @spell