Change : to _ in sys_id filenames to avoid issues

Author: janbruedigam

…im_N:15_cf:0.1_radius:0.05_side:0.5.jld2 …im_N_15_cf_0.1_radius_0.05_side_0.5.jld2examples/system_identification/data/dataset/box2d_dim_N:15_cf:0.1_radius:0.05_side:0.5.jld2 renamed to examples/system_identification/data/dataset/box2d_dim_N_15_cf_0.1_radius_0.05_side_0.5.jld2 examples/system_identification/data/dataset/box2d_dim_N:15_cf:0.1_radius:0.05_side:0.5.jld2 renamed to examples/system_identification/data/dataset/box2d_dim_N_15_cf_0.1_radius_0.05_side_0.5.jld2

@@ -128,19 +128,19 @@ function datafilename(model::Symbol; kwargs...)
 end
 
 function datafilenamesphere(; N::Int=10, friction_coefficient=0.1, radius=0.5)
-    "sphere_dim_N:$(N)_friction_coefficient:$(friction_coefficient)_radius:$(radius).jld2"
+    "sphere_dim_N_$(N)_friction_coefficient_$(friction_coefficient)_radius_$(radius).jld2"
 end
 
 function datafilenamebox2D(; N::Int=10, friction_coefficient=0.1, radius=0.05, side=0.50)
-    "box2D_dim_N:$(N)_friction_coefficient:$(friction_coefficient)_radius:$(radius)_side:$(side).jld2"
+    "box2D_dim_N_$(N)_friction_coefficient_$(friction_coefficient)_radius_$(radius)_side_$(side).jld2"
 end
 
 function datafilenamebox(; N::Int=10, friction_coefficient=0.1, radius=0., side=0.50)
-    "box_dim_N:$(N)_friction_coefficient:$(friction_coefficient)_radius:$(radius)_side:$(side).jld2"
+    "box_dim_N_$(N)_friction_coefficient_$(friction_coefficient)_radius_$(radius)_side_$(side).jld2"
 end
 
 function datafilenamehardwarebox(; N::Int=10, s=1)
-    "hardwarebox_dim_N:$(N)_sample_S:$(S).jld2"
+    "hardwarebox_dim_N_$(N)_sample_S_$(S).jld2"
 end
 
 function initial_state(model::Symbol; kwargs...)