Constructor for 1-dimensional KernelParameters (#4568)

* tuple constructor

* Fix typo

---------

Co-authored-by: Sid <[email protected]>

Author: simone-silvestri

src/Utils/kernel_launching.jl

@@ -43,6 +43,9 @@ See [`launch!`](@ref).
 """
 KernelParameters(size, offsets) = KernelParameters{size, offsets}()
 
+# If `size` and `offsets` are numbers, we convert them to tuples
+KernelParameters(s::Number, o::Number) = KernelParameters(tuple(s), tuple(o))
+
 """
     KernelParameters(range1, [range2, range3])