Use modules, update readme, add test driver

cmd/test/main.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"github.com/malwaredb/golzjd"
+	"os"
+	"fmt"
+)
+
+func main() {
+	if len(os.Args) < 2 {
+		fmt.Fprintf(os.Stderr, "Usages:\n")
+		fmt.Fprintf(os.Stderr, "\t%s <File> to see LZJD hash of a file\n", os.Args[0])
+		fmt.Fprintf(os.Stderr, "\t%s <File> <File> to use LZJD to calculate similarity\n", os.Args[0])
+		os.Exit(1)
+	}
+
+	firstFile := golzjd.GenerateHashFromFile(os.Args[1])
+	if len(os.Args) > 2 {
+		secondFile := golzjd.GenerateHashFromFile(os.Args[2])
+		similarity := golzjd.CompareHashes(firstFile, secondFile)
+		fmt.Printf("Similarity: %d\n", similarity)
+	} else {
+		fmt.Printf("Hash: %s\n", firstFile)
+	}
+}

go.mod

@@ -0,0 +1,3 @@
+module github.com/malwaredb/golzjd
+
+go 1.16

readme.md

@@ -1,6 +1,6 @@
 # golzjd
 
-This project is a work in progress to convert Edward Raff's original [LZJD](https://github.com/EdwardRaff/LZJD) to Go. To use LZJD with your project, run `go get github.com/rjzak/golzjd`, and import the project into your Go file. For more information about LZJD itself, read the [original paper](https://arxiv.org/abs/1708.03346).
+This project is a work in progress to convert Edward Raff's original [LZJD](https://github.com/EdwardRaff/LZJD) to Go. To use LZJD with your project, run `go get github.com/malwaredb/golzjd`, and import the project into your Go file. For more information about LZJD itself, read the [original paper](https://arxiv.org/abs/1708.03346).
 
 ## Example use