[Feature request] [Modules] Allow upgrading merged modules

[Scripter17]

Currently if you have a ton of tier 1 merged modules there's no way to convert them into tier 2+ merged modules the way you can with the other modules

I suggest the secondary recipes be:

Tier	Previous tier	green circuits	red circuits	blue circuits	low density structures
1	N/A	N/A	N/A	N/A	N/A
2	3	16	16	0	0
3	3	20	20	0	0
4	3	0	16	16	0
5	3	0	16	16	0
6	3	0	20	20	0
7	3	0	12	12	12
8	3	0	16	16	16
9	3	0	20	20	20
10	3	0	24	24	24

If I did the math right, this should make making a tier N merged module then upgrading to tier N+1 take the exact same resources as just making a tier N+1

I tried implementing this myself but I don't know lua or the factorio API so I just made a mess