Combine weather set commands

[AlexOn1ine]

Combines weather commands into Cmd_setfieldweather:

Cmd_setrain
Cmd_setsunny
Cmd_sethail
Cmd_setsandstorm
BS_SetSnow

[AsparagusEduardo]

I need to look better bc I'm on mobile, but doesn't Snow and Hail also fail to be set if Primordial Sea is active? If so, we need tests for those as well (+ Sandstorm for both primal weathers)

Besides that, looks good :)

[AlexOn1ine]

I need to look better bc I'm on mobile, but doesn't Snow and Hail also fail to be set if Primordial Sea is active? If so, we need tests for those as well (+ Sandstorm for both primal weathers)

Besides that, looks good :)

Yeah it does. I didn't write a test because I thought it might be redundant since I already wrote one for Desolate Land but if you think they are important I can add them.

/Edit: Added 😅