refactor: Update README to remove optional dependency on commons-lang3 and increment version to 1.7.1; enhance AzureAiClient with proxy settings and refactor conversation methods; add AnswerGrader class for answer evaluation; improve TextUtils with new methods for string manipulation and regex matching; introduce comprehensive tests for TextUtils functionality.

pom.xml

@@ -4,7 +4,7 @@
 	<artifactId>lm-lib</artifactId>
 	<groupId>de.extio</groupId>
 	<name>lm-lib</name>
-	<version>1.7.0</version>
+	<version>1.7.1</version>
 	
 	<properties>
 		<java.version>21</java.version>
@@ -13,7 +13,6 @@
 		<spring-boot.version>3.5.6</spring-boot.version>
 		<azureai.version>1.0.0-beta.5</azureai.version>
 		<jtokkit.version>1.1.0</jtokkit.version>
-		<commons-lang3.version>3.12.0</commons-lang3.version>
 	</properties>
 	
 	<repositories>
@@ -48,13 +47,6 @@
 	</dependencyManagement>
 	
 	<dependencies>
-		<dependency>
-			<groupId>org.apache.commons</groupId>
-			<artifactId>commons-lang3</artifactId>
-			<version>${commons-lang3.version}</version>
-			<scope>provided</scope>
-		</dependency>
-
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-webflux</artifactId>