Synda time slice in selection file breaks whenever a file has a bad name

[AtefBN]

Scenario: selection file with specific time slice.
When synda executes the sdtimefilter check for time range validation it relies on a simple truncate of the filename string and then immediately applies a split('-') on the string.
From sdtimefilter.py
`def timeslice_in_allowed_time_range(file_timeslice,allowed_time_ranges):
for allowed_time_range in allowed_time_ranges:
(start,stop)=split_timeslice(file_timeslice)
(allowed_range_start,allowed_range_stop)=split_timeslice(allowed_time_range)

    if (allowed_range_start<=start) and (allowed_range_stop>=stop):
        return True
    else:
        continue

return False

def split_timeslice(timeslice):
(start,end)=timeslice.split('-')

# For now, supported granularity for timeslice is YYYYMM (year and month).
# So we remove here finer grained timestamp info if any (i.e. day,hour,etc..).
# Finer grained timestamp info exists for example in 3hr file (i.e. frequency=3hr).
#
start=start[0:6]
end=end[0:6]

return (start,end)`

When a file is published with a bad naming, the truncate doesn't produce a string in the proper format causing synda to break down.
In this instance the filename had "gn3RaXbM42915" instead of a time range.
`*** Error occured at 2022-06-22 15:26:26.001725 ***

Traceback (most recent call last):
File "/home/synda/miniconda3/envs/synda35/bin/synda", line 33, in
sys.exit(load_entry_point('synda==3.35', 'console_scripts', 'synda')())
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/main.py", line 196, in run
status = sdtiaction.actionsargs.subcommand
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/sdtiaction.py", line 421, in install
status, newly_installed_files_count = sdinstall.run(args)
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/sdinstall.py", line 46, in run
metadata = syndautils.file_full_search(args)
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/syndautils.py", line 185, in file_full_search
metadata = sdsearch.run(stream=stream, dry_run=args.dry_run)
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/sdsearch.py", line 82, in run
metadata=_get_files(squeries,parallel,post_pipeline_mode,action,playback,record)
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/sdsearch.py", line 132, in _get_files
metadata=execute_queries(squeries,parallel,post_pipeline_mode,action)
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/sdsearch.py", line 97, in execute_queries
metadata=sdpipeline.post_pipeline(metadata,post_pipeline_mode)
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/sdpipeline.py", line 99, in post_pipeline
metadata=sdpipelineprocessing.run_pipeline(metadata,po)
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/sdpipelineprocessing.py", line 63, in run_pipeline
chunk = f(chunk, *args, **kwargs)
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/sdpipeline.py", line 44, in main_pipeline
files=sdfilepipeline.run(files=files)
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/sdfilepipeline.py", line 49, in run
files=sdtimefilter.run(files)
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/sdtimefilter.py", line 34, in run
if timeslice_in_allowed_time_range(file_timeslice,allowed_time_ranges):
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/sdtimefilter.py", line 43, in timeslice_in_allowed_time_range
(start,stop)=split_timeslice(file_timeslice)
File "/home/synda/miniconda3/envs/synda35/lib/python3.8/site-packages/synda/sdt/sdtimefilter.py", line 55, in split_timeslice`

This was replicated on synda 3.35 and synda 3.4
Proposed` fix is to try and except and return a false error in case of split_timeslice error effectively skipping the said file.