Bond Labels

[cfarm6]

Is your feature request related to a problem? Please describe.
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The group I am working with has calculated bond properties. In the python package for rdkit, we can assign 'bondNote' properties to draw the properties into our diagram. However, we are creating a web-based tool for our work and have currently been using the javascript package for the chemical drawings. The javascript package does not support the capability to add bond labels.

Describe the solution you'd like
We would like to have a solution similar to the atomLabels property for labelling bonds.

Describe alternatives you've considered
The alternatives we have considered involved pre-generating all of the images which would increase the storage requirements for the web version compared to only storing the bond-properties.