DT-6955 Viapoint by coordinates

[sharhio]

Proposed Changes

• Add a coordinate point to route search
• Limit viapoints to a configured number (default = 1)
• Show viapoint logo on route list
• Show the selected address of the viapoint on the route summary together with the viapoint logo (when viapoint is located in a walk leg)

Pull Request Check List

• A reasonable set of unit tests is included
• Console does not show new warnings/errors
• Changes are documented or they are self explanatory
• This pull request does not have any merge conflicts
• All existing tests pass in CI build

Review

• Read and verify the code changes
• Test the functionality by running the UI locally with all popular browsers available in your platform
• Check that the implementation matches the design, when such one is defined in a Jira issue
• Merge the pull request