Improve code quality by refactoring variable names

[wejrox]

The variable names used in the code describe what the type of data their holding is, instead of the contextual information required to read the code.

For example, DWORD dw; could be named DWORD bytesWritten; so that when you're reading the code without context it's obvious whether it's important to you.

Here's a diff as an example that improves code readability

Before

if (!std::filesystem::exists(filePath)) {
	HANDLE hOrg = CreateFileA("config.ini", (GENERIC_READ | GENERIC_WRITE), NULL, NULL, CREATE_ALWAYS, NULL, NULL); DWORD dw;
	if (hOrg) {
		HMODULE hModule = GetModuleHandle(L"dinput8.dll"); // Get handle to current DLL
		HRSRC hResource = FindResource(hModule, MAKEINTRESOURCE(IDR_RCDATA1), RT_RCDATA);
		HGLOBAL hResourceData = LoadResource(hModule, hResource);
		DWORD resourceSize = SizeofResource(hModule, hResource);
		LPVOID resourceData = LockResource(hResourceData); Sleep(2); SuspendThread(MainMain::mainTHread);
		if (WriteFile(hOrg, resourceData, resourceSize, &dw, NULL) && dw == resourceSize) { 
			CloseHandle(hOrg);
			ResumeThread(MainMain::mainTHread);
		}
		else
		{
			CloseHandle(configFileHandle);
			MessageBox(nullptr, L"your config.ini file doesn't exist, please re-download config.ini from Ezorsia v2 releases at https://github.com/444Ro666/MapleEzorsia-v2", L"bad config file", 0);
			ExitProcess(0);
		}
	}

After

HANDLE configFileHandle = CreateFileA("config.ini", (GENERIC_READ | GENERIC_WRITE), NULL, nullptr, CREATE_ALWAYS, NULL, nullptr);
	DWORD bytesWritten;
	if (configFileHandle)
	{
		HMODULE dllHandle = GetModuleHandle(L"dinput8.dll"); // Get handle to current DLL
		HRSRC dllResource = FindResource(dllHandle, MAKEINTRESOURCE(IDR_RCDATA1), RT_RCDATA);
		HGLOBAL dllResourceData = LoadResource(dllHandle, dllResource);
		DWORD resourceSize = SizeofResource(dllHandle, dllResource);
		LPVOID lockedResourceData = LockResource(dllResourceData);
		Sleep(2);
		SuspendThread(mainThread);
		if (WriteFile(configFileHandle, lockedResourceData, resourceSize, &bytesWritten, nullptr) && bytesWritten == resourceSize)
		{
			CloseHandle(configFileHandle);
			ResumeThread(mainThread);
		}
		else
		{
			CloseHandle(configFileHandle);
			MessageBox(nullptr, L"your config.ini file doesn't exist, please re-download config.ini from Ezorsia v2 releases at https://github.com/444Ro666/MapleEzorsia-v2", L"bad config file", 0);
			ExitProcess(0);
		}
	}

The benefit of improved code readability is that the barrier to entry reduces, and the project is more likely to receive contributions.