Bugfix: Make library work with ESP32 v3.1.0

[dalathegreat]

What

The changes introduced in EPS32 v3.1.0 causes a runtime crash when trying to use this AsyncTCP library

assert failed: tcp_alloc /IDF/components/lwip/lwip/src/core/tcp.c:1851 (Required to lock TCPIP core functionality!)

How

We fix this by applying the fix in espressif/arduino-esp32#10526 , suggested by mathieucarbou

[Lukaswnd]

In general it works for me. But you forgot to commit the AsyncTCP.h you added 2 functions, which also need to be added in the class declaration in the header.
And you should check backward compability

[mathieucarbou]

@dalathegreat : fyi the initial fix was improved.

you can have a look at the community maintained forks here where several people are collaborating:

• https://github.com/mathieucarbou/AsyncTCP/
• https://github.com/mathieucarbou/ESPAsyncWebServer/

Ideally the author would need to merge all the changes from these forks in his own repos if he intends one day to resume the work and maintenance of these repos, and give collaborator access to people to ensure that these won't be dead again.

[dalathegreat]

Thanks @mathieucarbou , I have switched my Battery-Emulator project over to using your excellent forks of ESPAsyncWebServer & AsyncTCPsock!

I will close this PR since it obviosuly is not a repo that is taking in new contributions!

[mathieucarbou]

Thanks @mathieucarbou , I have switched my Battery-Emulator project over to using your excellent forks of ESPAsyncWebServer & AsyncTCPsock!

We are maintaining AsyncTCP, not AsyncTCPSock ;-)