PowerModelsInterface needs to update PowerModel method names

[amirmm11]

Describe the bug
I got this warning when I used run_ac_pf

┌ Warning: the function run_ac_pf has been replaced with solve_ac_pf
└ @ PowerModels ~/.julia/packages/PowerModels/TYuCr/src/PowerModels.jl:101

To Reproduce
run This code:

using PowerSystems, PowerModelsInterface
using PowerModels
using Ipopt

DATA_DIR = download(PowerSystems.UtilsData.TestData, folder = pwd())
system = TamuSystem(joinpath(DATA_DIR, "ACTIVSg2000"))
run_ac_pf(system, Ipopt.Optimizer)

Expected behavior
from @jd-lara
PowerModelsInterface overloads the methods from PowerModels. so since PowerModels changed the methods names, we have to do the same in PowerModelsInterface