TT#19710 Add missing perl shebangs

Change-Id: I0d04b44b9ed25226587b2486a9ca6c6f1d67e112

Build.PL

@@ -1,4 +1,7 @@
+#!/usr/bin/perl
+
 use Module::Build qw();
+
 my $builder = Module::Build->new(
     module_name       => 'NGCP-Schema',
     license           => 'GPL_3',

t/compile.t

@@ -1,3 +1,5 @@
+#!/usr/bin/perl
+
 use Sipwise::Base '-skip'=>['TryCatch'];
 use blib 'blib';
 use File::ShareDir qw(dist_file);

tools/render_schema.pl

@@ -1,3 +1,4 @@
+#!/usr/bin/perl
 
 BEGIN {
     unshift(@INC,'../lib');