[AB-76] replaced usage templates for commands with a generated usage string, removed possibility to define the usage directly on the help

added Google guava dependency
minor fixes in documentation
fixed versions in main pom

abstracto-application/core/core-interface/src/main/java/dev/sheldan/abstracto/core/command/config/HelpInfo.java

@@ -6,7 +6,6 @@ import lombok.Getter;
 @Getter
 @Builder
 public class HelpInfo {
-    private String usage;
     private String longHelp;
     private String example;
     @Builder.Default

abstracto-application/core/core-interface/src/main/java/dev/sheldan/abstracto/core/command/service/CommandService.java

@@ -16,6 +16,7 @@ public interface CommandService {
     void makeRoleImmuneForCommand(ACommand aCommand, ARole role);
     void makeRoleAffectedByCommand(ACommand aCommand, ARole role);
     void restrictCommand(ACommand aCommand, AServer server);
+    String generateUsage(Command command);
     void unRestrictCommand(ACommand aCommand, AServer server);
     void disAllowCommandForRole(ACommand aCommand, ARole role);
     void disAllowFeatureForRole(FeatureEnum featureEnum, ARole role);

abstracto-application/core/core-interface/src/main/java/dev/sheldan/abstracto/core/models/template/commands/help/HelpCommandDetailsModel.java

@@ -14,6 +14,7 @@ import java.util.List;
 @SuperBuilder
 public class HelpCommandDetailsModel extends UserInitiatedServerContext {
     private CommandConfiguration command;
+    private String usage;
     private List<Role> allowedRoles;
     private List<Role> immuneRoles;
     private Boolean restricted;

abstracto-application/core/core-interface/src/test/java/dev/sheldan/abstracto/core/utils/ContextUtilsTest.java

@@ -17,8 +17,6 @@ import org.mockito.InjectMocks;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnitRunner;
 
-import java.util.Optional;
-
 import static org.junit.Assert.assertEquals;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.when;