Charter/Editor additions and fixes (#793)

* camera highlights again

* option to mute all hitsounds

* context menus inside context menus and wip sliders in context menu

* wip volume slider stuff

* strumline preview fix with resizable editors

* more slider stuff

* editor sfx option should now actually work for everything

* fixed strumline vocals volume, fixed note type option keybinds and moved bookmarks and note types into submenus

* fix for saving difficulty specific meta json

* some extra misc changes

fixed camera highlights not updating when zooming in/out, optimized some of the highlight draw code so it doesn't do a full loop, and added the note scale flag into the strumline preview

* fix compiling after merge

assets/languages/en/Editors.xml

@@ -223,6 +223,7 @@
 					<str id="resetZoom">Reset Zoom</str>
 					<str id="showSectionsSeparator">Show Sections Separator</str>
 					<str id="showBeatsSeparator">Show Beats Separator</str>
+					<str id="showCameraHighlights">Show Camera Highlights</str>
 					<str id="rainbowWaveforms">Rainbow Waveforms</str>
 					<str id="lowDetailWaveforms">Low Detail Waveforms</str>
 					<str id="scrollLeft">Scroll Left</str>
@@ -236,8 +237,9 @@
 					<str id="goEnd">Go forward to the end</str> <!-- used to be "Go to the end" -->
 					<str id="addOpponentCamera">Add camera on Opponent</str>
 					<str id="addPlayerCamera">Add camera on Player</str>
-					<str id="muteInst">Mute instrumental</str>
-					<str id="muteVoices">Mute voices</str>
+					<str id="inst">Instrumental</str>
+					<str id="voices">Voices</str>
+					<str id="hitsounds">Hitsounds</str>
 				</group>
 
 				<group name="BookmarkMenu" prefix="bookmarks.">
@@ -250,6 +252,7 @@
 					<str id="editBookmarkListTitle">Bookmark List</str>
 					<str id="editBookmarksTitle">Edit Bookmarks</str>
 					<str id="newBookmarkName">New Bookmark</str>
+					<str id="bookmarkList">Bookmark List</str>
 				</group>
 
 				<str id="topBar.note">Note</str>
@@ -258,6 +261,7 @@
 					<str id="subtractSustainLength">Subtract sustain length</str>
 					<str id="selectAll">Select all</str>
 					<str id="selectMeasure">Select measure</str>
+					<str id="noteTypesList">Note Types List</str>
 					<str id="editNoteTypesList">Edit Note Types List</str>
 				</group>
 				<str id="topBar.snap">Snap</str>
@@ -308,8 +312,9 @@
 			<group name="StrumlineOptions" prefix="strumLine.">
 				<str id="button-name">Options ↓</str>
 
+				<str id="waveforms">Waveforms</str>
 				<str id="hitsounds">Hitsounds</str>
-				<str id="muteVocals">Mute Vocals</str>
+				<str id="vocals">Vocals</str>
 				<str id="edit">Edit</str>
 				<str id="delete">Delete</str>