New Adapter: 9dotsmedialtd (#5966)

* new adapter 9dotsmedialtd.md

* pbjs support

* add empty line and false for pbjs

* Update 9dotsmedialtd.md

Fix

* Update 9dotsmedialtd.md

remove required fields, add host example

* Update 9dotsmedialtd.md

Host to Optional

* Update dev-docs/bidders/9dotsmedialtd.md

Co-authored-by: Muki Seiler <muuki88@users.noreply.github.com>

* Update 9dotsmedialtd.md

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Co-authored-by: mderevyanko <mderevyanko24@gmail.com>
Co-authored-by: maksimD24 <129727954+maksimD24@users.noreply.github.com>
Co-authored-by: Alexander Pykhteyev <alex.pykhteyev@gmail.com>
Co-authored-by: Muki Seiler <muuki88@users.noreply.github.com>