Startissue

[seanachao]

Your checklist for this pull request

• I've read the guidelines for contributing to this repository
• I made sure to follow the project's coding style
• I've added tests that prove my fix is effective or that my feature works (if possible)
• I've updated the documentation and the rizin book with the relevant information (if needed)

Detailed description

for the issue #616 #615

• Remove the = special flag from Rizin's startup flags to avoid possible confusion with the client/server = meaning in interactive mode
• Move the = special startup flag to -Pm (new) regular flags
• Move the = interactive client/server family command to R (new) interactive family command (short for "Remote")
• -- is used to signal "end of flags" to be consistent with the standard command line utilities syntax.
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Test plan

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Closing issues

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