[BUGFIX] Resource storage does not emit signals

The ResourceStorage class should emit signals before and after most
actions it performs. The emit*() methods are already there, but not
called from the "action" methods. This commit adds the calls where
missing.

Change-Id: Icf1653975aa72762ab61c6d649207c5900e66b1d
Resolves: #46587
Releases: 6.1, 6.0
Reviewed-on: https://review.typo3.org/19221
Reviewed-by: Alexander Opitz
Reviewed-by: Wouter Wolters
Reviewed-by: Tom Ruether
Reviewed-by: Benjamin Mack
Tested-by: Benjamin Mack
Reviewed-on: https://review.typo3.org/19239
[BUGFIX] Folder Tree does not respect _temp_ and _recycler_

The Folder Tree View does not respect temp and
recycler settings, which are identified by the folder
names.

The file list itself does that, because there is a wrong
use of "getIdentifier".

You can see that the foldertree does not show
"Temporary" but "_temp_"  because the comparison
fails every time. The file list works however.

Resolves: #46603
Releases: 6.1, 6.0
Change-Id: I08de29b737ef3464addceda9f610e9dd0a7b1034
Reviewed-on: https://review.typo3.org/19238
Reviewed-by: Andreas Wolf
Tested-by: Andreas Wolf