[FW][ADD] facebook_pixel_tracking: new module

[fw-bot-adhoc]

Forward-Port-Of: ingadhoc/website#257

[roboadhoc]

Pull request status dashboard.

[fw-bot-adhoc]

@lav-adhoc @maq-adhoc this PR targets 17.0 and is the last of the forward-port chain.

To merge the full chain, use

@fw-bot-adhoc r+

More info at https://github.com/odoo/odoo/wiki/Mergebot#forward-port

[maq-adhoc]

@roboadhoc r+

[maq-adhoc]

@fw-bot-adhoc r+

[maq-adhoc]

@fw-bot-adhoc r+

[matiasperalta1]

@roboadhoc override=ci/runbot-oba