[FEATURE] Handle large body for AppSec, process only the X first bytes or disable body forward

[maxlerebourg]

Is your feature request related to a problem? Please describe. 🐛
As an user, I receive sometime a large body request that could crash the plugin if Appsec is enabled.

Describe the solution you'd like ✨
Some take in "Modsecurity" is to be able to only process the first XX bytes from the body if it is very large.

Additional context
N/A