Fix Automatic-Module-Name by replacing dashes with dots to support Java 9+ Module Projects

[tetv]

Describe the bug
Automatic-Module-Name with dashes in the MANIFEST.MF:
Automatic-Module-Name: graphql-java-extended-scalars

Fix: It should contain dots instead of dashes.

To Reproduce
Create a Java 9+ project with modules activated (module-info.java file present).
Although you can ddd the graphql-java-extended-scalars dependency, you won't be able to use it.

Note that the graphql-java project doesn't have this issue, as contains in the Automatic-Module-Name: graphql.java

[dondonz]

Closed by #79