Remove id meta tag and validate mod ID

[ithinkandicode]

Changes:

• Removes extra.godot.id
• Validates that the mod ID is {namespace}-{name}. The mod won't load if it doesn't match

This works towards #20 (this comment):

tightly coupling the mod ID to package ID end to end would be great (so making them match with Thunderstore IDs to benefit from the ecosystem guarantees)

Logged error:

^ note: I added that line break afterwards, to make it easier to preview here. There's no line break in the actual code

[Qubus0]

this is a good start.
as per the info by thunderstore, a "full id" would be {namespace}-{name}-{version_number}
I'm not sure what we would call this id, maybe something like "full_name_id"?

the validation does address the composition, but not the elements of that composition. following thunderstore,
namespace and name are are validated with this ^[a-zA-Z0-9_]$ (where _ can only be replaced with space for display purposes)
and the version_number with this ^[0-9]+\.[0-9]+\.[0-9]+$
Godot does have a regex class you can use

[ithinkandicode]

this is a good start. as per the info by thunderstore, a "full id" would be {namespace}-{name}-{version_number} I'm not sure what we would call this id, maybe something like "full_name_id"?

the validation does address the composition, but not the elements of that composition. following thunderstore, namespace and name are are validated with this ^[a-zA-Z0-9_]$ (where _ can only be replaced with space for display purposes) and the version_number with this ^[0-9]+\.[0-9]+\.[0-9]+$ Godot does have a regex class you can use

Maybe something for a subsequent PR?

[Qubus0]

alright, to get on with the rest