Modest flint overhaul

Short description

The author had a problem with gravel and surely isn't alone - you grind at the same block until you find flint in it, and when you do, you need to ignore the fact that you already searched that pile of gravel a few times before finding flint and you need to ignore the fact that the reminder of gravel disappeared. poof. If you must know the details, mod splits gravel into two kinds:

• gravel that maybe has flint (blocks created by worldgen or mined with a silk touch tool),
• gravel that has no flint (obtained by digging with shovel or hands); this kind will not give any more flint after initial drop. Mod makes obtaining flint realistic and makes fortune make sense on one of your shovels, but realism comes with a price - if you need more flint, you need to go underground and find a gravel pocket or find a river deposit.

Compatibility with other mods

This part took the most time. Adding one block is easy. But both the new one and the altered vanilla block need to behave in pulverizers/crushers/millstones... The mod includes compatibility with important industry mods (create, immersive engineering, botania) and a few medicinal cabinet mods (thermal expansion, mekanism), but there might be incompatibilities out there in the wild. If you encounter a bad behavior, please post an issue here (not in comments, there is an issue link above this description (or here) and you do not have to log in).

this below is an original mod description. it turned out that curseforge refuses "question-and-answer sessions" as descriptions and i approve that rule. still, i think mine q&a session was quite good so i won't delete it. i'm leaving it below.