README and cmake update
Add few more details regarding:
- specific port (36421) used for E2AP
- gcc compiler: 11 not supported, but added steps for installing 10/12/13
- clang compiler: assert if
BLOCKS_RUNTIME_LIBRARY
doesn't exist, and provide the installation command - compiling FlexRIC with optional SWIG and python libraries (for using xApps in python) -
XAPP_MULTILANGUAGE
set toOFF
by default
Edited by Teodora Vladic