remove recase dependency (#512)

Author: VictorUvarov

example/lib/src/callscreen.dart

@@ -655,7 +655,7 @@ class _MyCallScreenWidget extends State<CallScreenWidget>
     return Scaffold(
       appBar: AppBar(
         automaticallyImplyLeading: false,
-        title: Text('[$direction] ${EnumHelper.getName(_state)}'),
+        title: Text('[$direction] ${_state.name}'),
       ),
       body: _buildContent(),
       floatingActionButtonLocation: FloatingActionButtonLocation.centerFloat,

example/lib/src/dialpad.dart

@@ -321,7 +321,7 @@ class _MyDialPadWidget extends State<DialPadWidget>
           SizedBox(height: 8),
           Center(
             child: Text(
-              'Register Status: ${EnumHelper.getName(helper!.registerState.state)}',
+              'Register Status: ${helper!.registerState.state?.name ?? ''}',
               style: TextStyle(fontSize: 18, color: textColor),
             ),
           ),

example/lib/src/register.dart

@@ -182,7 +182,7 @@ class _MyRegisterWidget extends State<RegisterWidget>
         children: <Widget>[
           Center(
             child: Text(
-              'Register Status: ${EnumHelper.getName(_registerState.state)}',
+              'Register Status: ${_registerState.state?.name ?? ''}',
               style: TextStyle(fontSize: 18, color: textColor),
             ),
           ),

lib/sip_ua.dart

@@ -1,4 +1,3 @@
-export 'src/enum_helper.dart';
 export 'src/enums.dart';
 export 'src/sip_message.dart';
 export 'src/sip_ua_helper.dart';

lib/src/enum_helper.dart

@@ -1,7 +1,6 @@
 import 'package:intl/intl.dart';
 import 'package:logger/logger.dart';
 
-import 'enum_helper.dart';
 import 'stack_trace_nj.dart';
 
 Logger logger = Log();
@@ -41,8 +40,7 @@ class MyLogPrinter extends LogPrinter {
 
   @override
   List<String> log(LogEvent event) {
-    if (EnumHelper.getIndexOf(Level.values, Log._loggingLevel) >
-        EnumHelper.getIndexOf(Level.values, event.level)) {
+    if (Log._loggingLevel.index > event.level.index) {
       // don't log events where the log level is set higher
       return <String>[];
     }

lib/src/logger.dart

@@ -14,7 +14,6 @@ dependencies:
   logger: ^2.0.2+1
   path: ^1.6.4
   random_string: ^2.3.1
-  recase: ^4.1.0
   sdp_transform: ^0.3.2
   text: ^0.2.0
   uuid: ^4.2.1