Fix problem with no_std deployments. (#16)

bit-reverse has a default feature that enables std. To make it work with no_std, remove the default features.

Author: timboldt

Cargo.toml

@@ -15,7 +15,7 @@ exclude = [
 
 [dependencies]
 embedded-hal = "0.2.2"
-bit_reverse = "0.1.7"
+bit_reverse = { version = "0.1.7", default-features = false }
 bitflags = "1.0"
 byteorder = { version = "1.2", default-features = false }