Add "Mythic Tree Dragon (Anime)"

[idk-what-to-name-here]

https://yugipedia.com/wiki/Mythic_Tree_Dragon_(anime)

• [X] I am following the contributing guidelines.
• [X] I am making the changes to modernize the scripts.

New card checklist

• [X] I have submitted a corresponding database entry for BabelCDB according to its guidelines. Link to the pull request: https://github.com/larry126/BabelCDB/pull/139
• [X] This card is not marked with a reason to not be added in the unofficial card tracker in #card-scripting-101. Supervising staff member(s): @larry126

[larry126]

Please correct the indentation in the operation function, use aux.FaceupFilter and appropriate bitwise operators instead of + and -. Also, the effect is missing the CATEGORY_LVCHANGE category, the reset should be RESETS_STANDARD_DISABLE as this is an effect that changes the stats of the card itself, and you do not need EFFECT_FLAG_SINGLE_RANGE (as you can see in the script of the OCG Tree Dragon). At last, the 3 scripts you most recently uploaded all have incorrect line endings and failed to pass our script checker.

[idk-what-to-name-here]

done