Some basic facts on polynomials + fix theory cloning #3557

Job	Run time
EasyCrypt compilation (nix)	40s
EasyCrypt compilation (opam)	1m 11s
Fetch EasyCrypt External Projects Matrix	3s
Check EasyCrypt Libraries (unit)	1m 13s
Check EasyCrypt External Projects (jasmin-eclib, https://github.com/jasmin-lang/jasmin, main, ecl...	1m 51s
Check EasyCrypt Libraries (stdlib)	5m 25s
Check EasyCrypt External Projects (sha3, https://gitlab.com/easycrypt/sha3, next, ., config/tests...	13m 9s
Check EasyCrypt Libraries (examples)	3m 0s
Check EasyCrypt External Projects (cryptobox, https://gitlab.com/fdupress/ec-cryptobox, next, ., ...	2m 21s
Check EasyCrypt External Projects (xsalsa20, https://gitlab.com/fdupress/ec-xsalsa, master, ., co...	1m 39s
Check EasyCrypt External Projects (xmss-acai, https://github.com/MM45/FV-XMSS-EC, master, ., conf...	8m 0s
Check EasyCrypt External Projects (xmss-fsai, https://github.com/MM45/FV-XMSS-EC, master, ., conf...	6m 50s
Check EasyCrypt External Projects (sphincsplus, https://github.com/MM45/FV-SPHINCSPLUS-EC, master...	21m 6s
Check EasyCrypt External Projects (set-status)	4s
Notification	2s
	1h 6m 34s

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