feat: add max-affected and handling parameters in prefer header support

[danfimov]

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What kind of change does this PR introduce?

• Added handling parameter in Prefer header support
• Added max-affected parameter in Prefer header support

What is the current behavior?

Currently support for this parameters is not implemented.

Additional context

PostgREST documentation:

• https://postgrest.org/en/v12/references/api/preferences.html#strict-or-lenient-handling
• https://postgrest.org/en/v12/references/api/preferences.html#max-affected