This is a rejuvenation of package tcl-nap

Code has been put in a fossil repository under a TEA structure. Some features of original package have been left out as they required difficult to meet dependencies. The left out features shall be present in another package similar to this one that shall be called napextra.

Code has been updated to build against latest tcl distribution (tcl 8.6 at the time of writing this notice).

The intention behind leaving out difficult to meet requirements is to allow for a wider adoption of the core functionalities of NAP and foster discussion about libraries for numerical/scientific computing among the tcl community members.