Add support for packed clients (#802)

* First iteration of pack reader and interface

* Fix memory leak and remove logs

* Complete packed asset interface and begin on file loading replacement

* Implement proper BinaryIO error

* Improve AssetMemoryBuffer for reading and implement more reading

* Repair more file loading code and improve how navmeshes are loaded

* Missing checks implementation

* Revert addition of Manifest class and migration changes

* Resolved all feedback.

dCommon/dClient/PackIndex.cpp

@@ -0,0 +1,50 @@
+#include "PackIndex.h"
+
+
+PackIndex::PackIndex(const std::filesystem::path& filePath) {
+	m_FileStream = std::ifstream(filePath / "versions" / "primary.pki", std::ios::in | std::ios::binary);
+
+	BinaryIO::BinaryRead<uint32_t>(m_FileStream, m_Version);
+	BinaryIO::BinaryRead<uint32_t>(m_FileStream, m_PackPathCount);
+
+	for (int i = 0; i < m_PackPathCount; i++) {
+		uint32_t stringLen = 0;
+		BinaryIO::BinaryRead<uint32_t>(m_FileStream, stringLen);
+
+		std::string path;
+
+		for (int j = 0; j < stringLen; j++) {
+			char inChar;
+			BinaryIO::BinaryRead<char>(m_FileStream, inChar);
+
+			path += inChar;
+		}
+
+		m_PackPaths.push_back(path);
+	}
+
+	BinaryIO::BinaryRead<uint32_t>(m_FileStream, m_PackFileIndexCount);
+
+	for (int i = 0; i < m_PackFileIndexCount; i++) {
+		PackFileIndex packFileIndex;
+		BinaryIO::BinaryRead<PackFileIndex>(m_FileStream, packFileIndex);
+
+		m_PackFileIndices.push_back(packFileIndex);
+	}
+
+	Game::logger->Log("PackIndex", "Loaded pack catalog with %i pack files and %i files", m_PackPaths.size(), m_PackFileIndices.size());
+
+	for (const auto& item : m_PackPaths) {
+		auto* pack = new Pack(filePath / item);
+
+		m_Packs.push_back(pack);
+	}
+
+	m_FileStream.close();
+}
+
+PackIndex::~PackIndex() {
+	for (const auto* item : m_Packs) {
+		delete item;
+	}
+}