Add cgdb port and package
	new file:   ts/5.1/packages/cgdb/build/install
	new file:   ts/5.1/packages/cgdb/build/remove
	new file:   ts/5.1/packages/cgdb/dependencies
	modified:   ts/ports/components/tora/.footprint
	modified:   ts/ports/components/tora/Pkgfile
	modified:   ts/ports/components/tora/tora#2.1.3-1.pkg.tar.gz
	new file:   ts/ports/extensions/cgdb/.footprint
	new file:   ts/ports/extensions/cgdb/.md5sum
	new file:   ts/ports/extensions/cgdb/Pkgfile
	new file:   ts/ports/extensions/cgdb/cgdb#0.6.7-1.pkg.tar.gz