Unify Pool*Array printing output

[YuriSizov]

Basically a backport of #53588, sans the tests.

---

The original OP

Currently the byte array is only displayed by its name if you try to print it, unlike int and real arrays. This adds a case to print `PoolByteArray`'s content the same way as ints and floats are printed.

This is already the case in master, where all packed arrays are printed the same way.

cc @akien-mga

[YuriSizov]

From a discussion on RC: we can probably backport #53588 fully, including supporting PoolColorArray and using a template for uniformity.

[YuriSizov]

Unified printing after #53588.

PoolVector2Array:
[(0, 0), (1, 1), (0, 1)]
PoolVector3Array:
[(0, 0, 0), (1, 1, 1), (0, -1, 0)]
PoolColorArray:
[1,0,0,1, 0,1,0,1, 0,0,1,1]
PoolStringArray:
[Godot, Game, Engine]
PoolByteArray:
[0, 1, 2, 3, 4]
PoolIntArray:
[0, 1, 2, 3, 4]
PoolRealArray:
[0.1, 1.2, 2.3, 3.4]
Array:
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

Maybe colors should be stringified akin to vectors, with parentheses? That's not a part of this PR, but it may make sense in general.

[akien-mga]

Maybe colors should be stringified akin to vectors, with parentheses? That's not a part of this PR, but it may make sense in general.

That might be too compat breaking for 3.x, given that people might have written their own logic to handle the current format. It's fixed in master so that might be good as is. (Technically this PR also breaks compat but I don't think anyone relied on PoolByteArray and PoolColorArray being stringified as [PoolByteArray] and [PoolColorArray] when no other Pool*Array was.

[akien-mga]

Thanks!