Check for overrides when changing php settings

[Derroylo]

Using this config as a base:

php:
  version: 8.0
  config:
    opcache.enable: off
    xdebug.mode: off
    xdebug.start_with_request: yes
  configWeb:
    memory_limit: 512M
    xdebug.mode: off
  configCLI:
    max_execution_time: 0
    xdebug.mode: off

When trying to change the setting for max_execution_time for both cli and web, the setting will be added to config but will not change the value for configCLI. If i want to change a setting globally and there is an override in Web or CLI, then the tool should inform the user about this and aks if the override should be removed.