Add more keywords to Tree-Sitter grammar

Author: fwcd

grammars/tree-sitter/tree-sitter-kotlin.cson

@@ -21,8 +21,10 @@ scopes:
 		"break",
 		"continue",
 		"return",
-		"for"
+		"for",
+		"package"
 	''': 'keyword.control.kotlin'
+	'"import"': 'keyword.control.import.kotlin'
 	'''
 		"catch",
 		"finally",
@@ -66,6 +68,7 @@ scopes:
 	'"fun"': 'storage.type.function.kotlin'
 	'"object"': 'storage.type.object.kotlin'
 	'"class"': 'storage.type.class.kotlin'
+	'"interface'": 'storage.type.interface.kotlin'
 	'"typealias"': 'storage.type.alias.kotlin'
 	'''
 		"val",