Incorrect processing of multiple AutoMappedField annotations within single mapping method

[Gavrilov-Ivan]

In case of multiple AutoMappedField annotations system extracts single container annotation instead of multiple target ones.
Suggested to use Spring MergedAnnotations to extract target annotations.
WA: distribute multiple annotations between multiple methods.

Testing:

1. Configure index definition with multiple AutoMappedField annotations (with different properties) on single method
2. ER: all properties are present in index mapping

[maistrenkoIulia]

verified