Merge pull request #3025 from verilog-to-routing/parse_config_init_place

Fix the regex pattern for initial placement WL

Author: AlexandreSinger

vtr_flow/parse/parse_config/common/vpr.place.txt

@@ -1,5 +1,5 @@
 #VPR Place Metrics
-initial_placed_wirelength_est;vpr.out;Initial placement BB estimate of wirelength:\s*(\d+)
+initial_placed_wirelength_est;vpr.out;Initial placement BB estimate of wirelength:\s*(.*)
 placed_wirelength_est;vpr.out;BB estimate of min-dist \(placement\) wire length: (\d+)
 
 #VPR Number of heap operations