FEXServerClient: Workaround sun_path 108 byte limit

We really don't want to do this, but in the case that the AF_UNIX path
is longer than the 108-byte limit that sun_path provides we don't really
have a choice. The alternative choice would be to switch /entirely/ away
from AF_UNIX and instead use pipes. We need a bandage fix for now, so
throw the socket in to a temp folder if the path is too long.

Source/Tools/FEXServer/ProcessPipe.cpp

@@ -228,7 +228,12 @@ bool InitializeServerSocket(bool abstract) {
   if (abstract) {
     ServerSocketName = FEXServerClient::GetServerSocketName();
   } else {
-    ServerSocketName = FEXServerClient::GetServerSocketPath();
+    ServerSocketName = FEXServerClient::GetServerSocketPath(false);
+    if (ServerSocketName.size() > sizeof(sockaddr_un::sun_path) - 1) {
+      LogMan::Msg::EFmt("Socket path '{}' too large for Unix domain sockets. Moving to tmp", ServerSocketName);
+      ServerSocketName = FEXServerClient::GetServerSocketPath(true);
+    }
+
     // Unlink the socket file if it exists
     // We are being asked to create a daemon, not error check
     // We don't care if this failed or not