Save Manager improvements

[veteran29]

Q	A
Bug fix?	no
New feature?	yes
Needs wipe?	no

Description:

Moved saving to function and added auto saving on last player exit. Also changed that save data is stored as string as this can take up to 10 times less space depending on save size.

Content:

• [x] Saving functions
• [x] Auto save on last player exit
• [x] Save the data as string in profile namespace

Successfully tested on:

• [x] Local MP
• [x] Dedicated MP