[Feature] Expect to use output proxy on same side as input trait (same type)

[Deepacat]

Log: https://mclo.gs/Cq7v0Ua (modlist on line 144)
Video of issue and setup: https://youtu.be/P1zcwUMIsRo
Ldlib files: ldlib.zip

[✔] multiblocked2-1.20.1-1.0.36

Steps to replicate:

1. Make a machine as a multi-part
2. Give it an input trait with sides
3. Give it a proxy from a result item slot on the same sides as the input trait
4. The sides with input trait and output proxy will only allow input from them

Expected behavior:

• Sides with input trait and output proxy toegther allow extracting from the output proxy, along with inputting

[Yefancy]

Based on the current framework, it only works if the input trait and the proxy output trait are two different types. its not that easy to merge them so far.