Space: recursive get_children

[PenguinBoi12]

Adds a depth parameter to Space.get_children() to recursively collect children of sub-spaces. Defaults to 1 for backwards compatibility.

Example

space = bot.get_space("!space123:matrix.org")

for child in space.get_children():
    print(child.name)

for child in space.get_children(depth=3):
    print(child.name)

[chrisdedman]

LGTM.

[chrisdedman]

LGTM