Update Freedoom.wad(s) 0.12.1 and Sigil v1.21

Changes

• Update Freedoom wads to v0.12.1
• Update Sigil (Romero's megawad addon) to v1.21
• Updates to Kazakh, Panjabi, Bengali, Hindi, Spanish, Russian, and Portugese languages (thanks Hugo Locurcio, MotherRussia161, John Saghdar, Никита Журавлёв, LOyoujoLI, Bohdan Shulyar, Леонид Зурнаджи, and Vicente Carrasco Álvarez)
• various under the hood preparations for a arm64-v8a release to satisfy Google Play's 64 bit requirenments