FEATURE: Line and radar charts should support transparent (noFill) lineDataSymbols similar to other charts

[NateRadebaugh]

Issue Category

• [X] Enhancement
• [ ] Bug
• [ ] Question
• [ ] Documentation gap/issue

Product Versions

• Please specify what version of the library you are using......: [3.13.0-beta.1]
• Please specify what version(s) of PowerPoint you are targeting: [latest]
• Please specify what web browser you are using.................: [chrome, edge]

Desired Behavior

Line and radar charts should support transparent (noFill) lineDataSymbols similar to other charts

Observed Behavior

solidFill is used even when color = transparent

Steps to Reproduce

Set the chart color to transparent, generate chart