add setSolvable!

Author: dehann

src/Common.jl

@@ -8,6 +8,7 @@ export getFactorType, getfnctype
 export lsTypes, lsfTypes
 export lsWho, lsfWho
 export *
+export setSolvable!
 
 *(a::Symbol, b::AbstractString)::Symbol = Symbol(string(a,b))
 
@@ -320,3 +321,16 @@ function lsfWho(dfg::AbstractDFG, type::Symbol)::Vector{Symbol}
 	end
 	return labels
 end
+
+
+"""
+    $SIGNATURESSet the `solvable` parameter for either a variable or factor.
+"""
+function setSolvable!(dfg::AbstractDFG, sym::Symbol, solvable::Int)
+  if isVariable(dfg, sym)
+    getVariable(dfg, sym).solvable = solvable
+  elseif isFactor(dfg, sym)
+    getFactor(dfg, sym).solvable = solvable
+  end
+  return solvable
+end