Add support for versioning in dataiku-api-client package

[Turribeach]

Add support for versioning in dataiku-api-client package so that either of these approaches can be used to find out what version of the dataiku-api-client one has installed:

from importlib.metadata import version
version('dataiku-api-client')

import dataikuapi
dataikuapi.__version__

Also why can't we have the package name match the import name like in most other Python packages? Thanks

[Turribeach]

Note the reason this is needed is that when using the dataikuapi package outside DSS you should always have a dataikuapi package version >= than the DSS version  of the environment you are trying to connect to.

[Turribeach]

Note the reason this is needed is that when using the dataikuapi package outside DSS you should always have a dataikuapi package version >= than the DSS version  of the environment you are trying to connect to.

[Turribeach]

Actually the first way works outside of Dataiku. Also this other way works too outside of Dataiku:

import pkg_resources
package = pkg_resources.get_distribution("dataiku-api-client")
print(package.version)

[Turribeach]

Actually the first way works outside of Dataiku. Also this other way works too outside of Dataiku:

import pkg_resources
package = pkg_resources.get_distribution("dataiku-api-client")
print(package.version)

[Turribeach]

However it will be better if dataikuapi.__version__ is implemented so that the version can be checked inside DSS as DSS imports packages from the PATH so the other methods to check the version will not work.

[Turribeach]

However it will be better if dataikuapi.__version__ is implemented so that the version can be checked inside DSS as DSS imports packages from the PATH so the other methods to check the version will not work.