New timeline chart type

[Lyq322]

What kind of change does this PR introduce? (check one with "x")

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

What is the current behavior? (You can also link to an open issue here)
Issue #1934

What is the new behavior?
A new timeline chart that displays date / integer ranges (input can be date or integers). There are two types, standard and stacked, similar to the bar charts.
Standard:

Stacked:

Tooltip is available as two different styles, bar label and vertical.
Bar label:


Vertical:


It also supports features common to all charts including: color scheme, axis and legend customization, height and width customization, round / straight bar corners, trim / wrap ticks and timeline filter.
Timeline filter:

Does this PR introduce a breaking change? (check one with "x")

• Yes
• No

If this PR contains a breaking change, please describe the impact and migration path for existing applications: ...

Other information: