Add an alias for searchability

[muratcakmaksoftware]

Description

@wenzhixin @fish-fly #6711

Hi, Could you add something like "sort name"? https://examples.bootstrap-table.com/#column-options/sort-name-order.html#view-source

Example:
searchable = true
search-name="u.lastName"
OR
searchable-name="u.lastName"

Because doctrine uses aliases, I need an alias name.

[muratcakmaksoftware]

@wenzhixin hello, Could you add label ?