waveica: accept tables with additional columns

[hechth]

Currently the tool is failing when additional columns are present, at least this is what seems to be the error. When running the tool on Galaxy with a metadata table that has additional columns, I get the following error:

Error in modwt(data_temp, wf = wf, n.levels = level) : 
  NA/NaN/Inf in foreign function call (arg 1)
Calls: waveica_singlebatch -> <Anonymous> -> wt_decomposition -> modwt
In addition: Warning messages:
1: In verify_column_types(data, required_columns) :
  NAs introduced by coercion
2: In verify_column_types(data, required_columns) :
  NAs introduced by coercion
Execution halted

When using rcx-tk and cutting only the required columns from the table, the tool works fine.