chore: change IESoptLib to a weakdep; add all internally registered s…

…olvers as weakdeps using "self-extension"

Project.toml

@@ -8,7 +8,6 @@ CSV = "336ed68f-0bac-5ca0-87d4-7b16caf5d00b"
 DataFrames = "a93c6f00-e57d-5684-b7b6-d8193f3e46c0"
 Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"
 HiGHS = "87dc4568-4c63-4d18-b0c0-bb2238e4078b"
-IESoptLib = "b98f706d-40ec-4ce6-a66c-1c6e71d3cef6"
 JLD2 = "033835bb-8acc-5ee8-8aae-3f567f8a3819"
 JSON = "682c06a0-de6a-54ab-a142-c8b1cf79cde6"
 JuMP = "4076af6c-e467-56ae-b986-b466b2749572"
@@ -28,13 +27,36 @@ Tectonic = "9ac5f52a-99c6-489f-af81-462ef484790f"
 YAML = "ddb6d928-2868-570f-bddf-ab3f9cf99eb6"
 ZipFile = "a5390f91-8eb1-5f08-bee0-b1d1ffed6cea"
 
+[weakdeps]
+CPLEX = "a076750e-1247-5638-91d2-ce28b192dca0"
+Cbc = "9961bab8-2fa3-5c5a-9d89-47fab24efd76"
+GLPK = "60bf3e95-4087-53dc-ae20-288a0d20c6a6"
+Gurobi = "2e9cd046-0924-5485-92f1-d5272153d98b"
+IESoptLib = "b98f706d-40ec-4ce6-a66c-1c6e71d3cef6"
+Ipopt = "b6b21f68-93f8-5de0-b562-5493be1d77c9"
+SCIP = "82193955-e24f-5292-bf16-6f2c5261a85f"
+
+[extensions]
+CPLEX = "CPLEX"
+Cbc = "Cbc"
+GLPK = "GLPK"
+Gurobi = "Gurobi"
+IESoptLib = "IESoptLib"
+Ipopt = "Ipopt"
+SCIP = "SCIP"
+
 [compat]
 ArgCheck = "2.3.0"
+CPLEX = "1.0.3"
 CSV = "0.10"
+Cbc = "1.2.0"
 DataFrames = "1.6"
 Dates = "<0.0.1,1"
+GLPK = "1.2.1"
+Gurobi = "1.3.0"
 HiGHS = "1.9"
 IESoptLib = "0.1"
+Ipopt = "1.6.2"
 JLD2 = "0.4"
 JSON = "0.21"
 JuMP = "1.22"
@@ -49,6 +71,7 @@ PrecompileTools = "1.2"
 Printf = "<0.0.1,1"
 ProgressMeter = "1.10"
 RuntimeGeneratedFunctions = "0.5.13"
+SCIP = "0.11.14"
 Suppressor = "0.2"
 Tectonic = "0.8"
 YAML = "0.4"