BF: Fix evaluation order calculation in child value replacement

See merge request !103

naive and buggy.

Bf/git call

See merge request !102

New createDiagnosisColumns(binarised) option

See merge request !101

tracking. Print out git describe instead of funpack.__version__ if running
from a checkout

to save original value for binarised columns - more explicit than "metadata",
and less hacky than gleaning the value from the column name. New binarised
option to createDiagnosisColumns, not implemented yet.

BF: Don't cast values to integers when creating column names in binariseCategorical

See merge request !100

won't be affected by trailing ".0" (which is due to the fact that integer
data fields are stored as float32 to allow nan-ness).

"0231", which are distinct/separate values.

error (a DataFrame being passed instead of a series), but the code would crash
at the beginning (when s.name is accessed) at least

New createDiagnosisColumns processing function

See merge request !99