Rename project to dredge-tool

The name "dredge" alreay exists on crates.io, but "dredge-tool" does not.
The name "dredge-tool" is more clear that this is a binary tool anyway.

Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "dredge"
+name = "dredge-tool"
 version = "0.2.0"
 edition = "2021"
 authors = ["Anthony Oteri"]
@@ -18,6 +18,11 @@ categories = [
     "api-bindings",
 ]
 
+
+[[bin]]
+path = "src/main.rs"
+name = "dredge"
+
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]