demo: cantilever scenario ready for NX test (52 pockets, 343 entities)

rib_profile_sandbox_1.json now contains the cantilever demo profile.
Also includes 4 demo scenarios with density heatmaps + profiles.

tools/adaptive-isogrid/tests/demo_4pt_bending_params.json

@@ -0,0 +1,13 @@
+{
+  "s_min": 28.0,
+  "s_max": 75.0,
+  "R_0": 35,
+  "alpha": 0.7,
+  "beta": 0.15,
+  "eta_0": 0.03,
+  "r_f": 6.0,
+  "eta_solid": 0.75,
+  "R_edge": 15.0,
+  "p": 2.5,
+  "kappa": 0.8
+}

tools/adaptive-isogrid/tests/demo_cantilever_params.json

@@ -0,0 +1,13 @@
+{
+  "s_min": 28.0,
+  "s_max": 75.0,
+  "R_0": 35,
+  "alpha": 0.7,
+  "beta": 0.2,
+  "eta_0": 0.03,
+  "r_f": 6.0,
+  "eta_solid": 0.75,
+  "R_edge": 15.0,
+  "p": 2.5,
+  "kappa": 0.8
+}

tools/adaptive-isogrid/tests/demo_diagonal_params.json

@@ -0,0 +1,13 @@
+{
+  "s_min": 28.0,
+  "s_max": 75.0,
+  "R_0": 30,
+  "alpha": 0.9,
+  "beta": 0.2,
+  "eta_0": 0.03,
+  "r_f": 6.0,
+  "eta_solid": 0.75,
+  "R_edge": 15.0,
+  "p": 2.5,
+  "kappa": 0.8
+}

tools/adaptive-isogrid/tests/demo_pressure_params.json

@@ -0,0 +1,13 @@
+{
+  "s_min": 28.0,
+  "s_max": 75.0,
+  "R_0": 45,
+  "alpha": 0.6,
+  "beta": 0.3,
+  "eta_0": 0.05,
+  "r_f": 6.0,
+  "eta_solid": 0.75,
+  "R_edge": 15.0,
+  "p": 2.5,
+  "kappa": 0.8
+}

tools/adaptive-isogrid/tests/demo_thermal_params.json

@@ -0,0 +1,13 @@
+{
+  "s_min": 28.0,
+  "s_max": 75.0,
+  "R_0": 75,
+  "alpha": 1.3,
+  "beta": 0.4,
+  "eta_0": 0.08,
+  "r_f": 6.0,
+  "eta_solid": 0.7,
+  "R_edge": 20.0,
+  "p": 2.0,
+  "kappa": 1.0
+}