Fix bug with multiple lines with comments

In this case:

74 68 69 73 20 69 73 20 61 20 74 65 73 74 /* This is a comment */
74 68 69 73 20 69 73 20 61 20 74 65 73 74 /* This is a comment */

The input would be repeated because I wasn't resetting the string builder between comments.

Add version and help message

• Improved the usage message so now it prints out the defaults and gives some example uses.
• Added a version flag so you can print out which version of the executable.

Add warning if hex contains `0a`

This release adds one new feature. If the hex input contains 0a byte, hex2raw prints out a warning message. The 0a byte is a newline character which causes problems in the attack lab's Gets function. It interprets the newline as terminating the input. If students have trouble even with the warning, I will consider making it an error instead of a warning.

First Release

First release of hex2raw tool. Designed to replace the hex2raw utility of the attack lab.

Features:

• Feature parity with old hex2raw
• Handle // comments
• Handle /* without spaces.
• Ignore spaces