Add and expose settings for SD find debounce as config options

[tommyhaley]

In this change a configurable initial debounce interval for SD find as well as a configurable number of initial debounces are introduced. This implies that services requested in the initial debounce phase will at most wait for an initial debounce interval before being included in a SD find debounce. After the initial debounce phase is completed, all subsequent SD find debounces will use the default debounce interval.

Added and exposed options:

• find_initial_debounce_reps
• find_initial_debounce_time

Exposed option:

• find_debounce_time

[tommyhaley]

@GenivivSOMEIPmaintainer How to get attention from maintainer/reviewer?

[duartenfonseca]

hi @tommyhaley we currently don't support vsomeip 3.1 so we won't be able to merge this. we will take into consideration the other fix for 3.4 version