Draft commit of the Fission java core lib

Author: vishal-biyani

fission-java-core/.gitignore

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+.project
+.mvn
+.settings
+.classpath
+target/
+bin/
+

fission-java-core/pom.xml

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+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  
+  <groupId>io.fission</groupId>
+  <artifactId>fission-java-core</artifactId>
+  <version>0.0.1</version>
+  <packaging>jar</packaging>
+  
+  <name>Fission java library</name>
+  <description>
+    A library for writing Fission functions using JVM runtime
+  </description>
+  <url>https://fission.io/</url>
+  <licenses>
+    <license>
+      <name>Apache License, Version 2.0</name>
+      <distribution>repo</distribution>
+    </license>
+  </licenses>
+  <scm>
+    <url>https://github.com/fission/fission-java-libs.git</url>
+  </scm>
+  <developers>
+    <developer>
+      <name>Fission team</name>
+      <organization>Platform9</organization>
+      <organizationUrl>https://platform9.com/</organizationUrl>
+    </developer>
+  </developers>
+  
+	<dependencies>
+		<dependency>
+		    <groupId>org.springframework</groupId>
+		    <artifactId>spring-web</artifactId>
+		    <version>5.0.5.RELEASE</version>
+		    <scope>provided</scope>
+		</dependency>
+    </dependencies>
+
+
+</project>

fission-java-core/src/main/java/io/fission/FissionContext.java

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+package io.fission;
+
+public interface FissionContext {
+
+}

fission-java-core/src/main/java/io/fission/FissionFunction.java

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+package io.fission;
+
+import org.springframework.http.RequestEntity;
+import org.springframework.http.ResponseEntity;
+
+public interface FissionFunction<RequestEntity, ResponseEntity> {
+	
+	org.springframework.http.ResponseEntity call(org.springframework.http.RequestEntity req, FissionContext context); 
+
+}