non-template Hypercomplex

[AngryMaciek]

We should have a non-template version of the library, probably with some dynamical memory allocation (since the dimensions might not be known at the compile time).

[github-actions]

Hey @AngryMaciek,

Thanks for taking interest in the project and the effort to help us improve it 👍
Project lead will probably come around and assign proper labels shortly...

Actually... maybe you would like to work on this issue yourself?
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Your help is much appreciated!

[AngryMaciek]

We should add an MD SPECIFICATION file which would list an abstract "API" which would be later implemented in various languages (and for each language there will be a docs)