findData
fun findData(hookList: HookList, needValids: Boolean, data: <Error class: unknown class>? = null): Hook
Finds a #GHook in a #GHookList with the given data.
Return
the #GHook with the given @data or null if no matching #GHook is found
Parameters
hookList
a #GHookList
needValids
true if #GHook elements which have been destroyed should be skipped
data
the data to find