feat(query): Custom url get info

[matrottier]

Please check if the PR fulfills these requirements

• The commit message follows our guidelines:https://github.com/infra-geo-ouverte/igo2/blob/master/.github/CONTRIBUTING.md#git-commit-guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What is the current behavior? (You can also link to an open issue here)
the absence of the new behavior

What is the new behavior?
the new queryable layer's param allow a custom getFeatureInfo's url.
find and replace in the url:
{x} : coordinate X of the click
{y} : coordinate Y of the click
{xmin} : extent of the map on click
{ymin} : extent of the map on click
{xmax} : extent of the map on click
{ymax} : extent of the map on click
{srid}: srid of the map and extent, x and y
{resolution} : resolution fo the map on click

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: