Pyslvs v20.03.0

Features:

• Dimensional synthesis result preview:
  • Add path comparison page.
  • Support monochrome mode.
• Change color of target path.
• More clearer command line interface.
• Fix incorrect "new link" conditions.
• Add ordered simples option of planar linkage synthesis.

Development:

• New graph searching method for polygon link from kernel.
• Remove docstring gap between class definition.
• Remove one instance limit.