fix(gui): instead gradle export was executed normal export
fix(gui): content of some resource files was not shown
perf: direct resource files saving without full length buffer in memory
perf(gui): line numbers will be disabled on big files due to performance issue
feat(gui): click on HeapUsageBar will run GC and update memory info
feat(gui): add more file types for syntax highlights
refactor: ResContainer class changed for support more types of data (added link to resource file)