Initial and inverse permutations

**Not tested yet**

	new file:   src/permutation_init.vhd
	new file:   src/permutation_inv.vhd
DES documentation added

	new file:   .gitignore
	modified:   README
	new file:   fips46-3.pdf
Efunc and Pfunc done

Created E function and P permutation function for DES from documentation fips46-3.pdf

	new file:   src/Efunc.vhd
	new file:   src/Pfunc.vhd
Merge branch 'drozdov_dev'
Functions are not tested but I think they are simple enough to be included into the master brunch.
Planner and README modification
Made some work division and modified our calendar. Added Kamil Dziezyk to resources in planner.

	modified:   README
	modified:   rim_project.planner
Konrad email added

	modified:   rim_project.planner