Add some labels

Author: bor-T

res/main/i18n/default/labels.json

@@ -534,8 +534,14 @@
 		"fade_out": "Fade out",
 		"head_cut": "Head cut",
 		"listen": "Listen",
+		"loop": "Loop",
+		"loop_end": "End",
+		"loop_fade": "Fade length",
+		"loop_start": "Start",
 		"makeup": "Makeup",
 		"pitch": "Pitch",
+		"pitch_chunk": "Chunk size",
+		"pitch_fade": "Fade length",
 		"predelay": "Pre-delay",
 		"reverse": "Reverse",
 		"sample_num": "Sample #",