Update ExprTk to 0.0.3

Signed-off-by: Arash Partow <partow@gmail.com>

Author: ArashPartow

.gitmodules

@@ -6,7 +6,8 @@
 	url = https://github.com/gtkwave/gtkwave.git
 [submodule "third_party/exprtk"]
 	path = third_party/exprtk
-	url = https://github.com/ArashPartow/exprtk.git
+    url = https://github.com/ArashPartow/exprtk.git
+    branch = release
 [submodule "third_party/spdlog"]
 	path = third_party/spdlog
 	url = https://github.com/gabime/spdlog.git

src/DeviceModeling/rs_expression_evaluator.h

@@ -108,7 +108,7 @@ class rs_expression_evaluator {
     symbol_table_t symbol_table;
     expression_t expression;
     expression.register_symbol_table(symbol_table);
-    parser_t parser(settings_t(settings_t::compile_all_opts +
+    parser_t parser(settings_t(settings_t::default_compile_all_opts +
                                settings_t::e_disable_usr_on_rsrvd)
                         .disable_all_base_functions()
                         .disable_all_control_structures());
@@ -178,7 +178,7 @@ class rs_expression_evaluator {
     symbol_table_t symbol_table;
     expression_t expression;
     expression.register_symbol_table(symbol_table);
-    parser_t parser(settings_t(settings_t::compile_all_opts +
+    parser_t parser(settings_t(settings_t::default_compile_all_opts +
                                settings_t::e_disable_usr_on_rsrvd)
                         .disable_all_base_functions()
                         .disable_all_control_structures());