`EventLogEnhancer` duplication of regexes in `normalize()`

[bakhtos]

Currently, the normalize() function has the following issue in comments:

       # TODO We need to duplicate everything otherwise we get only every other replacement in 
        #"Folder_0012_2323_2324" -> After first replacement we get Folder Folder_<NUM>_2323_<NUM>
        #After second replacement we get  Folder_<NUM>_<NUM>_<NUM>. This is ugly but due to Crate limitations
        # https://docs.rs/regex/latest/regex/
        # https://stackoverflow.com/questions/57497045/how-to-get-overlapping-regex-captures-in-rust
        # Orig:     BLOCK* NameSystem.allocateBlock: /user/root/rand/_temporary/_task_200811092030_0001_m_000590_0/part-00590. blk_-1727475099218615100
        # After 1st BLOCK* NameSystem.allocateBlock: /user/root/rand/_temporary/_task_<NUM>_0001_m_<NUM>_0/part-<NUM>. blk_<SEQ>'
        # After 2nd BLOCK* NameSystem.allocateBlock: /user/root/rand/_temporary/_task_<NUM>_<NUM>_m_<NUM>_<NUM>/part-<NUM>. blk_<SEQ>'
        #Longer explanation Overlapping Matches: The regex crate does not find overlapping matches by default. If your text has numbers that are immediately adjacent to each other with only a non-alphanumeric separator (which is consumed by the start or end group), the regex engine won't match the second number because the separator is already consumed by the first match.