make verbose be a LinearVerbosity

Author: jClugstor

src/common.jl

@@ -143,7 +143,7 @@ function SciMLBase.init(prob::LinearProblem, alg::SciMLLinearSolveAlgorithm,
         abstol = default_tol(real(eltype(prob.b))),
         reltol = default_tol(real(eltype(prob.b))),
         maxiters::Int = length(prob.b),
-        verbose::Bool = false,
+        verbose::LinearVerbosity = false,
         Pl = nothing,
         Pr = nothing,
         assumptions = OperatorAssumptions(issquare(prob.A)),