Read header in file and then match the model with headers and their order, instead of statically defining field order in model

[sandip4git]

Example 1, if below file is give as a input

"RECHNUNG";"DATUM";"KUNDENNR";"DEBITORKONTO"
"12345";"04.08.2020 00:00:00";"12345";"";
"12345";"04.08.2020 00:00:00";"12345";""
"12345";"04.08.2020 00:00:00";"12345";""

Then we should have attribute [MatchHeadersToModel] on model class should result in
field order in model as
"RECHNUNG" : 1
"DATUM": 2
"KUNDENNR" : 3
"DEBITORKONTO" : 4

Example 2., if below file is give as a input

"DATUM";"RECHNUNG";"KUNDENNR";"DEBITORKONTO"
"04.08.2020 00:00:00";"12345";"12345";"";
"04.08.2020 00:00:00";"12345";"12345";""
"04.08.2020 00:00:00";"12345";"12345";""

Then we should have attribute [MatchHeadersToModel] on model class should result in
field order in model as
"DATUM": 1
"RECHNUNG" : 2
"KUNDENNR" : 3
"DEBITORKONTO" : 4

So, basically, we are reading header in file and then matching the model with headers and their order, instead of statically defining in file.