Fix pp 3.5.4 related tests

[furqan463]

Relates Issue #488

Changes proposed in this PR include

Fixes failed tests after upgrading to pandapower=3.5.4. adds fixes missed in #370. pandapower attribute __format_version__ is being kept at 3.1.0 for backward compatibility, though it was updated to 3.3.0 in padnapower=3.3.0 but later reverted. That's the only change required to fix json conversion errors.

[furqan463]

@nitbharambe @figueroa1395 all tests now clear with these minimal changes.
However, it's not fully aligned with pandapower=3.5.4, as for 3-ph output of gen, phase-wise powers are introduced in e2nIEE/pandapower#3010. In current setup the pp output json file and pandapower_converter both have only p_mw and q_mvar as output for res_gen_3ph, therefore all tests are clear.
However, to fully align with pandapower=3.5.4 phase-wise outputs need to be generated/ converted for res_gen_3ph.
I'll take that up next.

[furqan463]

I'll take that up next.

or we remove fix to #488 from this PR, and move this task to another PR.

[furqan463]

move this task to another PR.

I'm working on this fix on another branch, will create PR after this is merged.

[furqan463]

@figueroa1395 this should fix tests for #495
We can remove uv.lock from this PR as well.

[figueroa1395]

@figueroa1395 this should fix tests for #495 We can remove uv.lock from this PR as well.

@furqan463 Thanks for the heads up. We'll get back to you as soon as we can.

[mgovers]

Hi @furqan463,

Sorry for the delay.

LGTM

Great decision to offload the 3ph output to #496 .