TCP-UDP update 1: optimizing agent framework

Updated the #agent #framework in TCP-UDP module. The #generic #TCP-UDP #framework has been #optimized to use shorter #variable #names and removed the #length variable for many #multi-size #parameters. This makes uses of short & easier variable names. The memory size of many multi-size variables have been made static and length support has been removed reducing the memory requirement.

#TCP-UDP update 1 ...
[commit 762b2f8898c9d55cd2289da33c19ea5176d02bc3] (https://github.com/nes-repo/NES-Open-Switch/commit/762b2f8898c9d55cd2289da33c19ea5176d02bc3)