Use prophet (1.1) instead of fbprophet (0.7)

[inigohidalgo]

Kats

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PR Description

I am opening this PR to upgrade prophet to 1.1 which removes the pystan dependency, which is no longer maintained: #249

This would make the process of installing Kats on Windows machines 1000x more fluid, as it no longer requires users to build the prophet package themselves, and removes the necessity for installing additional C++ compilers through conda.

Ver: Kats v1.02

[inigohidalgo]

Hi @iamxiaodong , I saw in #134 that you were not yet ready to merge the updated prophet dependency. Prophet has now released version 1.1 which includes a major QoL improvement, particularly for Windows users as we no longer need to install pystan, which is complicated to install without using conda.

I am opening a new PR as the last one targets prophet 1.0 instead of 1.1 which is the version with this improvement, and merge conflicts have arisen since it was written.

[octavd]

Hello @inigohidalgo , any news about this PR? will there be a new release?