Deprecate direct commandline scripts invocation and exclude nonsense ones

[tkmikan]

Deprecate the direct invocations to scripts before refactoring all tools to have a single entry point (Not finished in #660)
Check #2361

[Arusekk]

I would keep checksec, asm, disasm, constgrep, cyclic and errno, honestly, but most distros (pentoo, kali, AUR, not sure what else) already use the flag anyway.

[peace-maker]

We can add the inverse of the current pwn-only flag for users who wish to keep the wrapper scripts. I too think you can discover the other commands more easily when using the pwn wrapper. I use the tools you listed frequently as well, but do you suggest to keep them as is since distros already remove the scripts and users installing through pip expect them to be available?