Creating initial Commit of AI Shell

Add project and necessary files for the library to be complete. Modify
Read me to have a basic format.

 - Modify README.md
 - Add AIShellMathHelper.cs
 - Add AIShellUtility.cs
 - Add Condition.cs
 - Add AssemblyInfo.cs
 - Add Rule.cs
 - Add AI Shell.csproj
 - Add AI Shell.sln