CalculateDurationTime func to calculate duration time.

CopyFromEmbeddedFS function for copy files from embedded file system.

ExecCommand function to execute a given command.

GenerateFileFromTemplate func to generate files from templates.

GitClone function for `git clone` defined project template.

MakeFile function for single file create.

MakeFolder function for create folder.

RemoveFolders function for massively remove folders.

ShowError function for send error message to output.

ShowMessage function for showing output messages.

add a colorable std err.

add a colorable std out.

EmbeddedFileSystem struct contains embedded file system fields.