Unit Tests: SSHCreateBTree Arguments

[bogdandit]

Write unit tests in SSHCreateBTreeTest.java for testing the parse SSHCreateBTree.java arguments functionality.

The unit tests should fail, because the parse functionality will be implemented later in task #4

The expected arguments are listed in the README.md, section 5.1. Program Arguments

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Write unit tests in [SSHCreateBTreeTest.java](../blob/master/src/test/java/cs321/create/SSHCreateBTreeTest.java) for testing the parse [SSHCreateBTree.java](../blob/master/src/main/java/cs321/create/SSHCreateBTree.java) arguments functionality. 

The unit tests should fail, because the parse functionality will be implemented later in task #4.

The expected arguments are listed in the [README.md, section 5.1. Program Arguments](../blob/master/README.md#51-program-arguments)