-Fixed color issues with source files (particularly for C files with pceas/hucc)
-Improved tooltips to react to more symbols/labels in source files (asm or C)
-Fixed bug that caused opcode tooltips to appear in C source files
-For hucc, try to find symbols that start with an underscore as a fallback when the symbol is not found (C symbols are exported as their asm name, which has an underscore prefixed)
-Fix double-click on a label/symbol name in source view to navigate to that symbol/function/etc
Dynamically hide/show items in the menu based on where the user clicked
Avoids the need to reassign the viewer's context menu when clicked (which sometimes causes a crash in avalonia11-preview6)
