move util/ out of coremem and into its only user: buffer_proto5

crates/applications/buffer_proto5/src/main.rs

@@ -10,10 +10,13 @@ use coremem::render::CsvRenderer;
 use coremem::sim::spirv::{SpirvSim, WgpuBackend};
 use coremem::sim::units::{Seconds, Time as _};
 use coremem::stim::{CurlStimulus, Exp1, Gated, Sinusoid1, TimeVarying as _};
-use coremem::util::cache::DiskCache;
 use log::{error, info, warn};
 use serde::{Deserialize, Serialize};
 
+mod cache;
+
+use cache::DiskCache;
+
 type Mat = IsoConductorOr<f32, Ferroxcube3R1MH>;
 
 #[allow(unused)]