New schedule UI (PR#635)

[Ranran]

In version 15, some UI changes will be made to improve usability.
However, version 15 may come in the distant future, and players will not be able to benefit from them until then.
Until then, players will have to patiently continue using an inconvenient UI, which is a disadvantage to players.
It's not difficult to remove 15.0 features from these changes and incorporate them into the master branch.
Furthermore, I think it will be beneficial for the completion of ver. 15 to be able to test it out and get feedback from current players ahead of time.

One of the big changes to the UI is the schedule UI.
I've edited this to include it for the master branch.
You can test it with pull request #635.



--------
For reference, I tried to import the individual entry delete button and up down swap from standard, but this didn't fit well.

[Ranran]

This patch appears to require changes regarding saves. Do not merge yet.

[Ranran]

I think I have solved the save issue.
You can test this.

[jamespetts]

Excellent, thank you for that. Now incorporated.

[Ranran]

I neglected to report.
In the ex15 branch, the settings tab is divided into two because the number of setting items increases.
However, version 14 does not use the second tab, but the text of the tab called entry_setting_1 exists.