Platform file name

[alecandido]

Qibolab requires a platform folder to contain a platform.py file.

While this is a meaningful name, it is also pretty inconvenient, since clashing with the standard library.
https://docs.python.org/3/library/platform.html

Usually this is not a problem, since the import only happens at runtime through a dedicate path-based mechanism (cf. create_platform). However, it becomes an issue for any direct manipulation, e.g. creating the parameters from scratch, through the support introduced in #1123.

It may definitely be worth to favor a new name (e.g. create.py, or whatever else).

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Breaking change

While imposing a new name would be a breaking change, we could immediately start transitioning allowing an extra name, just leaving the old name deprecation to the next breaking release.

[alecandido]

@stavros11, I opened the issue without first discussing it. However, feel free to provide negative feedback as well.