Revert "chore: remove sources section from Project.toml"

This reverts commit 294f184.

Author: AayushSabharwal

Project.toml

@@ -201,5 +201,10 @@ StochasticDiffEq = "789caeaf-c7a9-5a7d-9973-96adeb23e2a0"
 Sundials = "c3572dad-4567-51f8-b174-8c6c989267f4"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
+[sources]
+ModelingToolkitStandardLibrary = { url = "https://github.com/SciML/ModelingToolkitStandardLibrary.jl/", rev = "mtk-v10" }
+OptimizationBase = { url = "https://github.com/AayushSabharwal/OptimizationBase.jl", rev = "as/mtk-v10" }
+OptimizationMOI = { url = "https://github.com/AayushSabharwal/Optimization.jl", subdir = "lib/OptimizationMOI", rev = "as/mtk-v10" }
+
 [targets]
 test = ["AmplNLWriter", "BenchmarkTools", "BoundaryValueDiffEqMIRK", "BoundaryValueDiffEqAscher", "ControlSystemsBase", "DataInterpolations", "DelayDiffEq", "NonlinearSolve", "ForwardDiff", "Ipopt", "Ipopt_jll", "ModelingToolkitStandardLibrary", "Optimization", "OptimizationOptimJL", "OptimizationMOI", "OrdinaryDiffEq", "OrdinaryDiffEqCore", "OrdinaryDiffEqDefault", "REPL", "Random", "ReferenceTests", "SafeTestsets", "StableRNGs", "Statistics", "SteadyStateDiffEq", "Test", "StochasticDiffEq", "Sundials", "StochasticDelayDiffEq", "Pkg", "JET", "OrdinaryDiffEqNonlinearSolve", "Logging", "OptimizationBase"]