Solar Flux Reborn

Changelog:

• Built and uploaded. (b6f98f621e859a0) by Zeith
• • Allow ES6 (to the extent Nashorn supports it) in custom panels script; (d4e9d1598b9f2a9) by Zeith
• Fully working SFR core. (dab07d21e1f04e5) by Zeith
• • 1.21.4 initial port. (c2d54842d0b9255) by Zeith
• Potential fix to #33 (891d2396eb4673d) by Zeith
• Fixed #32, #31 (duplicate) (2a0192d50b949a4) by Zeith
• Sanity-checked to work with NF 20.0.13 beta (a77dd4a8806db2d) by Zeith
• Some internal changes to language loading, hopefully to reduce the number of times SFR innocently appears in crash logs due to NF loading some things ahead of its normal schedule. Blazing Coating is now glowy! (aeca6c04a7e70f0) by Zeith
• Add NF to modrinth version checking. (9e0a142cf5bf7c1) by Zeith
• Publish 21.0.0 (0c303c3fd299fdf) by Zeith
• Actually verified to work on 1.21! (6c1a2eae84904c7) by Zeith
• Barebones untested 1.21 port. (faba6dfcb96f152) by Zeith
• Fix DE compat (missing 4th draconic panel) (d6c397d53206f6e) by Zeith
• Update to 1.20.6 (4069d9a01d16f43) by Zeith
• Bump build. (c03c128f3387bc9) by Zeith
• Fixed weird saving (somehow) (74ff54df3672113) by Zeith
• Fix some odd upgrade duping behavior. (63e4bb26af17747) by Zeith
• kinda working 1.20.5. Upgrades and upgrade storage are fucked af. Things keep resetting. (1c4dc943a14e20d) by Zeith
• Replace with NeoForge loader. (8e168f9173a0056) by Zeith