Some position decoding improvement

[TLeconte]

• Use decodeStringCoordinates everywhere when possible
• Use same item format position for all labels
• Add some position checking
• Add 3 more position formats
• Fix some 44 regex

[kevinelliott]

@TLeconte Hey Thierry, just seeing that I have overlooked review of this. Thanks for the contribution! Looks like there is some conflicts now (likely due to some new stuff that went in since). Any chance you can update that? I'll review right after.

[kevinelliott]

Hey @TLeconte just checking in again.

[kevinelliott]

Alright. @johnsom took it on himself to rebase and get this work you did @TLeconte in another PR. Thanks to both of you.

@TLeconte If you see something off or need to make a change, feel free to open a new PR.