add reftest advection_sine_weno

test/IntegrationTests/refs/advection_sine_weno/advection_sine_weno.toml

+[Evolution]
+cfl = 0.5
+tend = 2.2
+
+[Mesh]
+range = [0.0, 1.0]
+k = 25
+n = 7
+basis = "lgl_lumped"
+
+[Output]
+variables1d = ["u","u_err"]
+aligned_ts = [0.05, 0.1, 0.15, 0.2]
+interpolate_variables = ["u","u_err"]
+interpolate_aligned_ts = [0.3,0.6,0.8]
+interpolate_nodes = "$(collect(range(0.0,1.0,length=10)))"
+substep_variables = ["u","u_err"]
+substep_every_iteration = 200
+
+[ScalarEq]
+equation = "advection"
+id = "sine"
+analyze_error = true
+
+[HRSC]
+method = "weno"
+weno_order = 5
+
+[TCI]
+method = "minmod"

test/IntegrationTests/refs/testconfig.toml

@@ -7,6 +7,9 @@ default_abstol1d = 1e-8
 [advection_sine]
 variables1d = [ "u", "u_err" ]
 
+[advection_sine_weno]
+variables1d = [ "u", "u_err" ]
+
 [advection_sine_analysis]
 variables0d = [ "u_err_norm", "u_norm2" ]
 variables1d = [ "u" ]