Revert "removed spring boot support, added spring boot sample"

This reverts commit cff8b86.

# Conflicts:
#	README.md
#	pom.xml

Author: csviri

samples/basic/spring-boot/pom.xml

@@ -25,16 +25,11 @@
             <groupId>com.github.containersolutions</groupId>
             <artifactId>operator-framework-samples-common</artifactId>
             <version>${project.version}</version>
-            <exclusions>
-                <exclusion>
-                    <groupId>org.apache.logging.log4j</groupId>
-                    <artifactId>log4j-slf4j-impl</artifactId>
-                </exclusion>
-            </exclusions>
         </dependency>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter</artifactId>
+            <groupId>com.github.containersolutions</groupId>
+            <artifactId>spring-boot-operator-framework-starter</artifactId>
+            <version>${project.version}</version>
         </dependency>
     </dependencies>
 
@@ -43,7 +38,7 @@
             <dependency>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-dependencies</artifactId>
-                <version>2.2.6.RELEASE</version>
+                <version>2.1.6.RELEASE</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>

samples/basic/spring-boot/src/main/java/com/github/containersolutions/operator/sample/SpringBootStarterSampleApplication.java

@@ -1,8 +1,16 @@
 package com.github.containersolutions.operator.sample;
 
+import com.github.containersolutions.operator.api.Controller;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.FilterType;
 
+/**
+ * Note that we have multiple options here either we can add this component scan as seen below. Or annotate controllers
+ * with @Component or @Service annotation or just register the bean within a spring "@Configuration".
+ */
+@ComponentScan(includeFilters = {@ComponentScan.Filter(type = FilterType.ANNOTATION, value = Controller.class)})
 @SpringBootApplication
 public class SpringBootStarterSampleApplication {