Implement FlxStreamBuffer and beginnings of ConsoleCommands in unreal

Source/Integration/StringDecoder.cpp

@@ -1,38 +1,2 @@
 #include "StringDecoder.h"
 
-FlxStringDecoder::FlxStringDecoder(std::string_view s) {
-	Text = s.data();
-	Size = s.size();
-	ErrBeyondEOF = false;
-	ErrStringTooLong = false;
-}
-
-void FlxStringDecoder::Reset(std::string_view s, bool clear) {
-	Text = s.data();
-	Size = s.size();
-	if (clear) {
-		ErrBeyondEOF = false;
-		ErrStringTooLong = false;
-	}
-}
-
-std::string_view FlxStringDecoder::GetRest() {
-	return std::string_view(Text, Size);
-}
-
-std::string_view FlxStringDecoder::read_string_view() {
-	size_t length = read_length();
-	if (length > Size) {
-		ErrBeyondEOF = true;
-		return std::string_view();
-	}
-	std::string_view result(Text, length);
-	Text += length;
-	Size -= length;
-	return result;
-}
-
-void FlxStringDecoder::set_at_eof() {
-	Text += Size;
-	Size = 0;
-}