[TASK] Add new icon for ext:reports

Add a new icon for ext:reports-module and adjust the
IconViewHelper. Removes 2 old icons.

Change-Id: Iff731cc27ad8e6323aea8c6c01c036f3a776b3e2
Related: #41631
Resolves: #51993
Releases: 6.2
Reviewed-on: https://review.typo3.org/23818
Reviewed-by: Stefan Neufeind
Tested-by: Stefan Neufeind
Reviewed-by: Ernesto Baschny
Tested-by: Ernesto Baschny
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn