[CIUv3] Custom Installer Ultimate v3

[Cesar82]

The changes are informed in the changelog.
The changelog file is not in order of inclusion of the changes.
Read the entire changelog to see the changes that were included.

Main beta 2 changes:
- Added HashPage for Hash Check.
- Added Open buttons (unlimited) to open documents or folders or execute external files.
- Added new options for Equalizer like Opacity and Solid Color (without adding image).

PS:
- If anyone has time please test using Inno Setup 6.
- When I have ready version 3.0.0.1 (Final), I will create an installer for Inno Setup 6 similar to 5.61 that I did the repack.

- Any questions that you have suggested and have not yet been included, please comment.
- The inclusion of multiple music files will be included later because I will replace the run mode after Altef_4 completes the changes in IsMediaLib.dll (Altef_4 thanks for the effort).


HOTFIX 1
- Fixed UnInstall button visible on installer and SmallInstaller pages.
- Updated Polish language file.