Support bulk replacement of CHAs- user management tool

[PhilipNgari]

A need to support frequent asks by Counties. linked to eCHIS #2680

[kennsippell]

@PhilipNgari Bulk replacement is already supported today.

This is the template:

Sub County	Affected CHU	CHA Name	CHA Phone
Langata	Southlands A	Beatrice Wamgari	0712344321

User managers can follow this template to do bulk replacements of CHAs in Kenya. If this is insufficient, can you clarify what you are expecting or hoping to see?