move RestoreAPIState and ResetAPIState into backends

it's a backend specific hack, so it should be here
should give a small speedup in dx11 efb2tex

Source/Core/VideoCommon/Src/FramebufferManagerBase.cpp

@@ -163,13 +163,9 @@ void FramebufferManagerBase::CopyToVirtualXFB(u32 xfbAddr, u32 fbWidth, u32 fbHe
 
 	// keep stale XFB data from being used
 	ReplaceVirtualXFB();
-  
-	g_renderer->ResetAPIState(); // reset any game specific settings
 
 	// Copy EFB data to XFB and restore render target again
 	vxfb->xfbSource->CopyEFB(Gamma);
-
-	g_renderer->RestoreAPIState();
 }
 
 FramebufferManagerBase::VirtualXFBListType::iterator FramebufferManagerBase::FindVirtualXFB(u32 xfbAddr, u32 width, u32 height)

Source/Core/VideoCommon/Src/TextureCacheBase.cpp

@@ -814,9 +814,5 @@ void TextureCache::CopyRenderTargetToTexture(u32 dstAddr, unsigned int dstFormat
 
 	entry->frameCount = frameCount;
 
-	g_renderer->ResetAPIState(); // reset any game specific settings
-
 	entry->FromRenderTarget(dstAddr, dstFormat, srcFormat, srcRect, isIntensity, scaleByHalf, cbufid, colmat);
-
-	g_renderer->RestoreAPIState();
 }

Source/Plugins/Plugin_VideoDX11/Src/FramebufferManager.cpp

@@ -208,6 +208,8 @@ void XFBSource::DecodeToTexture(u32 xfbAddr, u32 fbWidth, u32 fbHeight)
 
 void XFBSource::CopyEFB(float Gamma)
 {
+	g_renderer->ResetAPIState(); // reset any game specific settings
+	
 	// Copy EFB data to XFB and restore render target again
 	const D3D11_VIEWPORT vp = CD3D11_VIEWPORT(0.f, 0.f, (float)texWidth, (float)texHeight);
 
@@ -222,6 +224,8 @@ void XFBSource::CopyEFB(float Gamma)
 
 	D3D::context->OMSetRenderTargets(1, &FramebufferManager::GetEFBColorTexture()->GetRTV(),
 		FramebufferManager::GetEFBDepthTexture()->GetDSV());
+	
+	g_renderer->RestoreAPIState();
 }
 
 }  // namespace DX11

Source/Plugins/Plugin_VideoDX9/Src/FramebufferManager.cpp

@@ -187,6 +187,8 @@ void FramebufferManager::CopyToRealXFB(u32 xfbAddr, u32 fbWidth, u32 fbHeight, c
 
 void XFBSource::CopyEFB(float Gamma)
 {
+	g_renderer->ResetAPIState(); // reset any game specific settings
+	
 	// Copy EFB data to XFB and restore render target again
 	LPDIRECT3DSURFACE9 Rendersurf = NULL;
 	texture->GetSurfaceLevel(0, &Rendersurf);
@@ -229,6 +231,8 @@ void XFBSource::CopyEFB(float Gamma)
 	D3D::dev->SetDepthStencilSurface(FramebufferManager::GetEFBDepthRTSurface());
 
 	Rendersurf->Release();
+	
+	g_renderer->RestoreAPIState();
 }
 
 }  // namespace DX9

Source/Plugins/Plugin_VideoDX9/Src/TextureCache.cpp

@@ -83,6 +83,8 @@ void TextureCache::TCacheEntry::FromRenderTarget(u32 dstAddr, unsigned int dstFo
 	bool isIntensity, bool scaleByHalf, unsigned int cbufid,
 	const float *colmat)
 {
+	g_renderer->ResetAPIState(); // reset any game specific settings
+	
 	const LPDIRECT3DTEXTURE9 read_texture = (srcFormat == PIXELFMT_Z24) ?
 		FramebufferManager::GetEFBDepthTexture() :
 		FramebufferManager::GetEFBColorTexture();
@@ -180,6 +182,8 @@ void TextureCache::TCacheEntry::FromRenderTarget(u32 dstAddr, unsigned int dstFo
 	D3D::SetTexture(0, NULL);
 	D3D::dev->SetRenderTarget(0, FramebufferManager::GetEFBColorRTSurface());
 	D3D::dev->SetDepthStencilSurface(FramebufferManager::GetEFBDepthRTSurface());
+
+	g_renderer->RestoreAPIState();
 }
 
 TextureCache::TCacheEntryBase* TextureCache::CreateTexture(unsigned int width, unsigned int height,

Source/Plugins/Plugin_VideoOGL/Src/TextureCache.cpp

@@ -309,6 +309,8 @@ void TextureCache::TCacheEntry::FromRenderTarget(u32 dstAddr, unsigned int dstFo
 	bool isIntensity, bool scaleByHalf, unsigned int cbufid,
 	const float *colmat)
 {
+	g_renderer->ResetAPIState(); // reset any game specific settings
+	
 	// Make sure to resolve anything we need to read from.
 	const GLuint read_texture = (srcFormat == PIXELFMT_Z24) ?
 		FramebufferManager::ResolveAndGetDepthTarget(srcRect) :
@@ -434,6 +436,8 @@ void TextureCache::TCacheEntry::FromRenderTarget(u32 dstAddr, unsigned int dstFo
 		SaveTexture(StringFromFormat("%sefb_frame_%i.tga", File::GetUserPath(D_DUMPTEXTURES_IDX).c_str(),
 			count++).c_str(), GL_TEXTURE_2D, texture, virtual_width, virtual_height, 0);
     }
+
+	g_renderer->RestoreAPIState();
 }
 
 void TextureCache::TCacheEntry::SetTextureParameters(const TexMode0 &newmode, const TexMode1 &newmode1)