Add incremental speed status mode for more responsive speed and estimates

[vearutop]

No description provided.

[github-actions]

Lines Of Code

Language	Files	Lines	Code	Comments	Blanks	Complexity	Bytes
Go	5	998 (+38)	760 (+26)	34 (+1)	204 (+11)	193 (+5)	20.8K (+869B)
YAML	7	543 (-3)	470 (-3)	33	40	0	18.6K (-96B)

[github-actions]

Go API Changes

# github.com/bool64/progress
## compatible changes
Progress.IncrementalSpeed: added
Status.BytesCompleted: added

# summary
Inferred base version: v0.3.5
Suggested version: v0.4.0

[github-actions]

Unit Test Coverage

total: (statements) 35.4%
changed lines: (statements) 0.0%, coverage is less than 90.0%, consider testing the changes more thoroughly

Coverage of changed lines

File	Function	Coverage
Total		0.0%
progress.go		0.0%
progress.go:202	speedStatus	0.0%
progress.go:240	printStatus	0.0%

Coverage diff with base branch

File	Function	Base Coverage	Current Coverage
Total		36.9%	35.4% (-1.5%)
progress.go	speedStatus	no function	0.0%