Add predefined JavaScript callbacks

[cbouy]

Adds

• Predefined JavaScript callbacks in the mols2grid.callbacks module. Those can be extensively configured:
  • info: displays a bigger image alongside some common descriptors for the molecule
  • show_3d: displays the molecule in 3D
  • external_link: opens a new tab. By default, opens Leruli.com using the SMILES of the molecule.
• Support for tuple in display and save.

Changes

• The "click" event is now automatically removed from tooltip_trigger when specifying a callback.

Fixes

• The link to the KNIME component on the corresponding badges has been fixed.

[codecov-commenter]

Codecov Report

Merging #37 (404af9d) into master (e5eb839) will increase coverage by 0.15%. The diff coverage is 94.28%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #37 +/- ## ========================================== + Coverage 90.24% 90.40% +0.15% ========================================== Files 9 10 +1 Lines 492 521 +29 ========================================== + Hits 444 471 +27 - Misses 48 50 +2 ``` [](https://codecov.io/gh/cbouy/mols2grid/pull/37?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=C%C3%A9dric+Bouysset) | [Impacted Files](https://codecov.io/gh/cbouy/mols2grid/pull/37?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=C%C3%A9dric+Bouysset) | Coverage Δ | | |---|---|---| | [mols2grid/utils.py](https://codecov.io/gh/cbouy/mols2grid/pull/37/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=C%C3%A9dric+Bouysset#diff-bW9sczJncmlkL3V0aWxzLnB5) | `98.11% <ø> (-0.07%)` | :arrow_down: | | [mols2grid/molgrid.py](https://codecov.io/gh/cbouy/mols2grid/pull/37/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=C%C3%A9dric+Bouysset#diff-bW9sczJncmlkL21vbGdyaWQucHk=) | `92.98% <88.88%> (-0.14%)` | :arrow_down: | | [mols2grid/callbacks.py](https://codecov.io/gh/cbouy/mols2grid/pull/37/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=C%C3%A9dric+Bouysset#diff-bW9sczJncmlkL2NhbGxiYWNrcy5weQ==) | `95.00% <95.00%> (ø)` | | | [mols2grid/\_\_init\_\_.py](https://codecov.io/gh/cbouy/mols2grid/pull/37/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=C%C3%A9dric+Bouysset#diff-bW9sczJncmlkL19faW5pdF9fLnB5) | `91.66% <100.00%> (+0.75%)` | :arrow_up: | | [mols2grid/\_version.py](https://codecov.io/gh/cbouy/mols2grid/pull/37/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=C%C3%A9dric+Bouysset#diff-bW9sczJncmlkL192ZXJzaW9uLnB5) | `100.00% <100.00%> (ø)` | | | [mols2grid/dispatch.py](https://codecov.io/gh/cbouy/mols2grid/pull/37/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=C%C3%A9dric+Bouysset#diff-bW9sczJncmlkL2Rpc3BhdGNoLnB5) | `58.49% <100.00%> (+1.62%)` | :arrow_up: | | [mols2grid/widget/widget.py](https://codecov.io/gh/cbouy/mols2grid/pull/37/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=C%C3%A9dric+Bouysset#diff-bW9sczJncmlkL3dpZGdldC93aWRnZXQucHk=) | `100.00% <100.00%> (ø)` | |