Fix AddResource offset for Linux

[Yarukon]

need those who use linux to test this to see if the crash still occur
(i dont have linux enviroment to test this rn)
how to test:
try precache something and then change map

[xen-000]

I believe the offset should be 0 on linux and 2 on windows, this is because the first 3 functions in IEntityResourceManifest are all overloads of AddResource:

class IEntityResourceManifest
{
public:
	virtual void AddResource(const char*) = 0;
	virtual void AddResource(const char*, void*) = 0;
	virtual void AddResource(const char*, void*, void*, void*) = 0;
	virtual void unk_04() = 0;
	virtual void unk_05() = 0;
	virtual void unk_06() = 0;
	virtual void unk_07() = 0;
	virtual void unk_08() = 0;
	virtual void unk_09() = 0;
	virtual void unk_10() = 0;
};

So what you want to use is the first one, or offset 0. But MSVC flips overload ordering so it becomes the third function, or offset 2.

[Yarukon]

I believe the offset should be 0 on linux and 2 on windows, this is because the first 3 functions in IEntityResourceManifest are all overloads of AddResource:

class IEntityResourceManifest
{
public:
	virtual void AddResource(const char*) = 0;
	virtual void AddResource(const char*, void*) = 0;
	virtual void AddResource(const char*, void*, void*, void*) = 0;
	virtual void unk_04() = 0;
	virtual void unk_05() = 0;
	virtual void unk_06() = 0;
	virtual void unk_07() = 0;
	virtual void unk_08() = 0;
	virtual void unk_09() = 0;
	virtual void unk_10() = 0;
};

So what you want to use is the first one, or offset 0. But MSVC flips overload ordering so it becomes the third function, or offset 2.

changed to 0

[xLeviNx]

Tested. This can be merged.

@roflmuffin