Custom pagination text

[raulzc3]

Description

It would be very usefull to have a prop that translates the pagination text or allow to have a custom text instead of the current hardcoded one (it is a good default text btw)

Implementation Model

Possible implementation:
File Pagination.tsx (line 43):

<Text size={fontSize} className={classes[1]}>
{
customPaginationText ? customPaginationText(firstRowNum, lastRowNum, maxRows) : 
        `Showing <b>${firstRowNum}</b> - <b>${lastRowNum}</b> of <b>${maxRows}</b>` }
      </Text>

I`m not really sure if this way is going to work or if it is the proper way to do it is just an example of the funcionality that I am proposing :)

It could be used like this:

Example 1:

<Datagrid  
customPaginationText = {(firstRowNum, lastRowNum, maxRows)=> `Mostrando <b>${firstRowNum}</b> - <b>${lastRowNum}</b> de <b>${maxRows}</b>`}
{...datagridProps}
/> 

Example 2:

<Datagrid  
customPaginationText = {(firstRowNum, lastRowNum, maxRows)=> `Rows <b>${firstRowNum}</b> - <b>${lastRowNum}</b> of <b>${maxRows}</b>`}
{...datagridProps}
/>