Support for only running on top X records

[tznind]

Fixes #185

PS D:\Repos\IsIdentifiable\ii\bin\Debug\net6.0> ./ii file -f D:\temp\Demography.csv --top 100 --storereport
2022-09-01 13:12:02.7501| INFO|IsIdentifiable.Runners.FileRunner|Headers are:chi,dtCreated,current_record,notes,chi_num_of_curr_record,chi_status,century,surname,forename,sex,current_address_L1,current_address_L2,current_address_L3,current_address_L4,current_postcode,date_of_death,source_death,area_residence,hb_extract,current_gp,birth_surname,previous_surname,midname,alt_forename,other_initials,previous_address_L1,previous_address_L2,previous_address_L3,previous_address_L4,previous_postcode,date_address_changed,adr,current_gp_accept_date,previous_gp,previous_gp_accept_date,date_into_practice,date_of_birth,patient_triage_score,hic_dataLoadRunID||
2022-09-01 13:12:02.8071|TRACE|IsIdentifiable.Runners.IsIdentifiableAbstractRunner|Done 100 rows||
2022-09-01 13:12:02.8071| INFO|IsIdentifiable.Runners.IsIdentifiableAbstractRunner|Total runtime for FileRunner:00:00:00.0882868||
2022-09-01 13:12:02.8071| INFO|IsIdentifiable.Runners.IsIdentifiableAbstractRunner|ValidateCacheHits:2702 Total ValidateCacheMisses:1198||
2022-09-01 13:12:02.8071| INFO|IsIdentifiable.Runners.IsIdentifiableAbstractRunner|Total FailurePart identified: 1088||