Implement chunk parsing (#362)

* partial parsechunk implementation

* fix format

* param name fix

* rename functions

* match MxStreamController::RemoveSubscriber

* implement rest of MxDSBuffer

* Fixes and better matches

* Matche ParseChunk 100%

* Match MxDiskStreamProvider::VTable0x20

* Match MxDSBuffer::CalcBytesRemaining

* Minor stuff

* Minor improvements

* Refactor functions

---------

Co-authored-by: Christian Semmler <mail@csemmler.com>

LEGO1/mxdschunk.cpp

@@ -19,3 +19,9 @@ MxDSChunk::~MxDSChunk()
 		delete[] m_data;
 	}
 }
+
+// FUNCTION: LEGO1 0x100be1e0
+MxU32 MxDSChunk::ReturnE()
+{
+	return 0xe;
+}