Method clear

KBotExt/imgui/imgui_internal.h:710–710

	int             EndOffset = 0;                          // Because we don't own text buffer we need to maintain EndOffset (may bake in LineOffsets?)

	void            clear() { LineOffsets.clear(); EndOffset = 0; }
	int             size() { return LineOffsets.Size; }
	const char* get_line_begin(const char* base, int n) { return base + LineOffsets[n]; }
	const char* get_line_end(const char* base, int n) { return base + (n + 1 < LineOffsets.Size ? (LineOffsets[n + 1] - 1) : EndOffset); }