Add line string feature

[igncp]

Hi,

Seems that in Bitbucket the current suffix #L does not work anymore for indicating the line number, and it requires #lines- instead. To support that, I added a new option --sourcefile-url-lines-str, maintaining backward compatibility. Has been tested and it is working.

The project is not building on install, so also applied some of the changes from: https://github.com/kolyan-r/typedoc-plugin-sourcefile-url (thanks a lot @kolyan-r !) which was discussed in an existing issue.

Not sure if this package is still maintained but would be nice to have this feature in the main package to avoid having to duplicate it locally.

Could also remove the new package-lock.json and formatting that comes with a more recent npm version.

Cheers for the plugin

[gmaggiodev]

@gdelmas can you accept the @igncp Pull Request? We need it in our project and I would like to avoid forking your work just for this.

Regards

[Naoto-Ida]

Hey I was also going to do a PR to add this feature, but found this one!
In our case, the line number is just #2 if it's on line 2.

Merging this would be much appreciated...