SUMMARY: The DDL migration can now be generated by adding a `-ddl` and a
proper "alter" or "create" as argument value.
Migration generation had been modified to accommodate the complementary
code for ddl generation
Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
This removes the filepath.Walk() when loading configuration,
as it can read a Beefile from another project in the $GOPATH.
Now config.LoadConfig() is called for all available commands.
create sub packages
delete unused code
delete code from not use command cmdRouter,cmdTest, cmdRundocs
make command plugins
check with gosimple,staticcheck,go vet,unused,unconvert
