Added a Legacy-specific version of Dandelion Sprouts nordiske filtre

[DandelionSprout]

Hopefully as simple as the title says.

If not, then I've turned on the "Allow edits by maintainers" button for this PR.

[JustOff]

I was told by Raymond several times that using the XUL name against uBO for Firefox Legacy is not correct, so could you please change the title to NOR, DNK, ISL: Dandelion Sprouts nordiske filtre (Legacy) and the file name to something like NordicFiltersLegacy.txt?

[DandelionSprout]

Sure thing. Give me 10min.

[DandelionSprout]

Okay, I seem to have fixed it now.

[AroKol78]

invalid filter - it is not 100% compatible

[DandelionSprout]

I'll look into how to fix them with RegEx. Give me 30min.

[JustOff]

Merged in https://github.com/gorhill/uBlock-for-firefox-legacy/commit/8024518ddd356570c137d35e618a09e9b99d5673

I also changed the title to NOR, DNK, ISL: Dandelion Sprouts nordiske filtre – Legacy just like "uBlock filters - Legacy".

[AroKol78]

it is strange Invalid network filter in NOR-0: gamereactor.*$$script[onError="adblockEnabled()"] https://raw.githubusercontent.com/DandelionSprout/adfilt/master/NorwegianExperimentalList%20alternate%20versions/NordicFilters-NotFirefox.txt

!#if adguard
gamereactor.*$$script[onError="adblockEnabled()"]
!#endif
!#if env_firefox
gamereactor.*##^script[onError="adblockEnabled()"]
!#endif

maybe i need a blank line after the first !#endif

[DandelionSprout]

The most likely cause was that I was using AntiAdblockEntries.txt as an !#include file, despite already being included in the list generation script to begin with, resulting in a few dozen duplicate entries that also were unprocessed by the script.

Removing !#include AntiAdblockEntries.txt, which I've done now, should fix it.