Update CsvFileReader.kt

[mykhaylo-]

Updated CsvFileReader to use header row number of fields as a reference for mismatched rows check

[codecov]

Codecov Report

Merging #83 (c4c6616) into master (f4637eb) will decrease coverage by 0.09%.
The diff coverage is 66.66%.

@@             Coverage Diff              @@
##             master      #83      +/-   ##
============================================
- Coverage     82.71%   82.61%   -0.10%     
- Complexity      144      145       +1     
============================================
  Files            21       21              
  Lines           972      978       +6     
  Branches        197      198       +1     
============================================
+ Hits            804      808       +4     
- Misses           16       17       +1     
- Partials        152      153       +1     

Impacted Files	Coverage Δ	Complexity Δ
...thub/doyaaaaaken/kotlincsv/client/CsvReaderTest.kt	75.87% <60.00%> (-0.41%)	1.00 <0.00> (ø)
...thub/doyaaaaaken/kotlincsv/client/CsvFileReader.kt	82.92% <71.42%> (+0.42%)	17.00 <2.00> (+1.00)

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[doyaaaaaken]

refs #82

[doyaaaaaken]

@mykhaylo-
Thank you.
Looks good to me, but please add a test code.

Write it under this line.
Your test code might look like the code I wrote below

//example test code (maybe it doen't work)
"number of fields in a row has to be based on the header #82" {
            val data = "1,2,3\na,b\nx,y,z"
            val exception = shouldThrow<CSVFieldNumDifferentException> {
                csvReader().readAllWithHeader(data)
            }
            exception.fieldNum shouldBe 3
}