Run clippy on Sobol sampler, and fix/silence warnings.

sub_crates/sobol/src/lib.rs

@@ -3,6 +3,8 @@
 //! This implementation is limited to `2^16` samples, and will loop back to
 //! the start of the sequence after that limit.
 
+#![allow(clippy::unreadable_literal)]
+
 mod wide;
 use wide::Int4;
 

sub_crates/sobol/src/wide.rs

@@ -255,7 +255,7 @@ pub(crate) mod fallback {
 
     impl From<[u32; 4]> for Int4 {
         fn from(v: [u32; 4]) -> Self {
-            Int4 { v: v }
+            Int4 { v }
         }
     }
 }