Support for Units and Experimental support for Solving after variables

This release adds support for Unit calculation.
It also introduces Solving functions after variables (experimental)

It includes a ZIP file containing common electrical units as sample material. To use it, please extract the folder from the ZIP file to %Documents%/comroid/clmath/

Usability Improvements

• Introduces stashing for handling several functions
• Introduces custom constants
• Introduces aligning results and variables

Respect operator precedence and allow graph scaling

This release introduces clmath to version 1.0; introduces operator precedence and rescaling of the graph viewer.