Feature/raw input callback

[Shulkin]

Added a function to handle the raw input value before formatting.

It can be very useful to remove some characters before formatting. For example, change a period to a comma. Because sometimes both symbols can be used as a separator. Or do any change to input depending on external conditions.

[codecov[bot]]

Codecov Report

Merging #75 into master will decrease coverage by 1.95%. The diff coverage is 0%.

@@           Coverage Diff           @@
##           master   #75      +/-   ##
=======================================
- Coverage   97.95%   96%   -1.96%     
=======================================
  Files           1     1              
  Lines          49    50       +1     
  Branches       20    21       +1     
=======================================
  Hits           48    48              
- Partials        1     2       +1

Impacted Files	Coverage Δ
src/vue-numeric.vue	96% <0%> (-1.96%)	:arrow_down:

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[Daniel4Digital]

+1 on this! Would be very useful!