feat(custom): support tooltipDisabled for custom series

[Ovilia]

Brief Information

This pull request is in the type of:

• bug fixing
• new feature
• others

What does this PR do?

There was no way to ignore triggering tooltip for an element returned by renderItem. silent: true was usually used in such cases but we might want to use emphasis style when hovering.

Fixed issues

Details

Before: What was the problem?

There was no way to ignore triggering tooltip for an element returned by renderItem.

After: How does it behave after the fixing?

Elements returned by renderItem can set disableTooltip: true so that it won't trigger tooltip showing.

Document Info

One of the following should be checked.

• This PR doesn't relate to document changes
• The document should be updated later
• The document changes have been made in apache/echarts-doc@f3ce392

Misc

ZRender Changes

• This PR depends on ZRender changes (ecomfe/zrender#xxx).

Related test cases or examples to use the new APIs

N.A.

Others

Merging options

• Please squash the commits into a single one when merging.

Other information

[echarts-bot]

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The pull request is marked to be PR: author is committer because you are a committer of this project.

Document changes are required in this PR. Please also make a PR to apache/echarts-doc for document changes and update the issue id in the PR description. When the doc PR is merged, the maintainers will remove the PR: awaiting doc label.

[github-actions]

The changes brought by this PR can be previewed at: https://echarts.apache.org/examples/editor?version=PR-20447@c350fc8