better documenation on correct maven pom settings.

[bsutton]

Just trying to work out what maven entries are required to use bouncy castle and its not at all clear.

It would be great if you could documented the dependencies to use bounce castle in the 'standard' manner:

e.g.

       <dependency>`
			<groupId>org.apache.logging.log4j</groupId>
			<artifactId>log4j-core</artifactId>
			<version>2.9.1</version>
		</dependency>

[bsutton]

For other people reading this I found the following entry worked however I'm not certain how to verify its the correct version.

		<dependency>
			<groupId>org.bouncycastle</groupId>
			<artifactId>bcprov-jdk15on</artifactId>
			<version>1.59</version>
		</dependency>