restructured project to match a more standard cmake setup

src/streams/memorystream.cpp

@@ -0,0 +1,55 @@
+#include <blah/streams/memorystream.h>
+#include <string.h>
+
+using namespace Blah;
+
+MemoryStream::MemoryStream()
+	: m_data(nullptr), m_length(0), m_position(0) {}
+
+MemoryStream::MemoryStream(char* data, int64_t length)
+	: m_data(data), m_length(length), m_position(0) {}
+
+MemoryStream::MemoryStream(MemoryStream&& src) noexcept
+{
+	m_data = src.m_data;
+	m_position = src.m_position;
+	m_length = src.m_length;
+	src.m_data = nullptr;
+	src.m_length = src.m_position = 0;
+}
+
+MemoryStream& MemoryStream::operator=(MemoryStream&& src) noexcept
+{
+	m_data = src.m_data;
+	m_position = src.m_position;
+	m_length = src.m_length;
+	src.m_data = nullptr;
+	src.m_length = src.m_position = 0;
+	return *this;
+}
+
+int64_t MemoryStream::read_into(void* ptr, int64_t len)
+{
+	if (len < 0 || ptr == nullptr)
+		return 0;
+
+	if (len > m_length - m_position)
+		len = m_length - m_position;
+
+	memcpy(ptr, m_data + m_position, (size_t)len);
+	m_position += len;
+	return len;
+}
+
+int64_t MemoryStream::write_from(const void* ptr, int64_t len)
+{
+	if (len < 0 || ptr == nullptr)
+		return 0;
+
+	if (len > m_length - m_position)
+		len = m_length - m_position;
+
+	memcpy(m_data + m_position, ptr, (size_t)len);
+	m_position += len;
+	return len;
+}