feat: progress speed

[iyear]

Proposed Changes

• add progress speed render
• modify render_test.go
• modify demo and demo.gif

[coveralls]

Pull Request Test Coverage Report for Build 2983379914

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 2901119745:	0.0%
Covered Lines:	3134
Relevant Lines:	3134

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💛 - Coveralls

[iyear]

I will add some tests later

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[jedib0t]

Thanks for the feature, and the extra effort to keep the coverage at 100%. I'll merge it, but I want to add some stuff on top. Will cut a tag later today. 👍🏽

[jedib0t]

@iyear I've made some changes on top of your feature code, most important of which is to change the default options to NOT show speed to maintain backward compatibility. Please look at #225 for the same.

Tag for use: https://github.com/jedib0t/go-pretty/releases/tag/v6.3.8

[iyear]

I wasn't thinking about backward compatibility, thanks!