Add a cleaning function incorporating findings from dissertation

[ryentes]

a functional prototype might look like

function id_careless(df, method='longstring', clean=FALSE) {

}

[franciscowilhelm]

Function features should:

• allow multiple methods to be selected, e.g. method = c('longstring', 'evenodd')
• allow additional arguments via ...
• validate user arguments with easy to understand errors and warnings
• depending on output: S3 object with its own summary and print function

[franciscowilhelm]

Output could include

• call
• dataset (modified with new column called careless, logical with TRUE FALSE for flagged / non-flagged responses)
• cleaned dataset (filtered rows)
• a list for each used method, e.g. list longstring with a) arguments/parameters; b) output (index values), and c) flagged on that method (logical vector)