Make honest Aeson Eq instance

I'm having tests that rely on semantical equality of Json objects, however I'm having issues with Aeson

{"hash":"16574b0f9130f157ccb452cebc00faccfe411b932a2be4fe6e6069cb893d596e","plutusData":{"constr":0,"fields":[{"constr":0,"fields":["",""]},{"constr":0,"fields":["b8aa6f60b48ad4cb0f623edc96eb4dffb652b3a2384287b22c8814ac","5659464974"]},{"constr":0,"fields":["6304d06da03652264996015f08e6d2770ed9a0e57a105ea2c918f05c","56594649745f414441745f6e6674"]},995,7670125982969789,1e+17,"184ff44840c8c0ad71d39e356511660f84e321915bbf76d90bd1969f",{"constr":0,"fields":["6d620e702133d0d4f2273246a36f895b0015c4d385c7cab1aa7c02fd"]},15000000,26075191]}}

≠ 

{"hash":"16574b0f9130f157ccb452cebc00faccfe411b932a2be4fe6e6069cb893d596e","plutusData":{"constr":0,"fields":[{"constr":0,"fields":["",""]},{"constr":0,"fields":["b8aa6f60b48ad4cb0f623edc96eb4dffb652b3a2384287b22c8814ac","5659464974"]},{"constr":0,"fields":["6304d06da03652264996015f08e6d2770ed9a0e57a105ea2c918f05c","56594649745f414441745f6e6674"]},995,7670125982969789,100000000000000000,"184ff44840c8c0ad71d39e356511660f84e321915bbf76d90bd1969f",{"constr":0,"fields":["6d620e702133d0d4f2273246a36f895b0015c4d385c7cab1aa7c02fd"]},15000000,26075191]}}

Seems like upon reading into Aeons we the BigInt stringified as 1e+17 and then when writing to Aeson we get 100000000000000000.

Since Aeson implements the Eq instance using a stringified form of Json, for semantically the same Json objects we get 2 different textual representations (see above). Let's rather make this right and implement a proper equality instance that captures the semantics of what it means for 2 Json objects to be the same.

Start at the Aeson Eq instance and the BigInt parsing and encoding path described in the report. Compare the two numeric representations in the supplied examples and define semantic equality for Json; done means equivalent values compare equal without changing distinct values.