Implement checksums to verify integrity and duplicates with MD5 hash functions

{{{#!td

MAJs:
- `ORCA2_ICE_v4.0.tar` checksum was not good, the previous one probably dates before the addition of `sdw_ecwaves_orca2.nc.gz`
- `INPUTS_PISCES_v3.6` and `INPUTS_PISCES_v4.0` have been updating with a revised `ndeposition.orca.nc` on nitrogen unit.

{{{
1d78289badee4deddd6e5ee76530773c  AGRIF_DEMO_v4.0.tar
4ce49d803250191eae3e73d2c7bce927  AMM12_v3_4.tar
1d65cd97f87b2955d015f4a1f00ff9d7  AMM12_v3.6.tar
48fdf0ae823ad7df80b826ff1ac85bc9  AMM12_v4.0.tar
a489bdf83d57d32f50c205c9dbfd0d38  INPUTS_C1D_PAPA_v3.6.tar
1f4cf10c33148f4253749213c4dfebfa  INPUTS_C1D_PAPA_v4.0.tar
4309d3a830f6fe871e572cbe94900832  INPUTS_DYNA_v3.6.tar
e977ec876b4aebb4a673a91773626334  INPUTS_PISCES_v3.4.tar
138972ef9b322ffc3b7ebe01d839c3c8  INPUTS_PISCES_v3.6.tar
d5e15f2e375e2fd82c064a93d4c7e19c  INPUTS_PISCES_v4.0.tar
4c636c4516a828892cc08810b6d0ff13  INPUTS_SAS_v3.6.tar
4c636c4516a828892cc08810b6d0ff13  INPUTS_SAS_v4.0.tar
fe6c0c2ae1d4fb42b30578646536615f  ORCA2_ICE_v4.0.tar
e9b0741d2c78fe5af56969e5c9a4bb3a  ORCA2_LIM_v3.4.tar
8290960d3bc8481c4f02cc0d72e9b91d  ORCA2_LIM_v3.6.tar
6f05a2b8cb57e58f439783edfeca5852  ORCA2_OFF_v4.0.tar
bb5a67673e29be4b3f5f009a712dc11d  SPITZ12_v4.0.tar
}}}

}}}