NetShareEnumAll over DCE/RPC and SMB1

[n00tmeg]

This fixes #100

This PR adds NetShareEnumAll support to SMB1. It also updates the existing framework for DCE/RPC.

Changes

• Updated the Client and delegate the NetShareEnumAll logic to the File object.
• Added all the needed SMB_COM_TRANSACTION packets to support named pipe operations (TRANSACT_NMPIPE) for SMB1.
• Added BindAck packet.
• Added dynamic construction for DCE/RCP presentation syntax in Bind and BindAck packets.
• Improved handling of DCE/RPC errors.
• Added DCE/RPC PDU header packet.
• Added padding calculation for NetShareEnumAll packet.
• Fixed UUID primitive type to set and return the correct values.
• Added DCERPC module files for SMB1 and SMB2.
• Added specs for all of this

  Verification Steps

• [x] bundle install
• [x] Verify you can enumerate remote share with SMB1 and SMB2 with ruby examples/net_share_enum_all.rb <ip-address> <username> <password>

  rake spec

• [x] rake spec
• [x] VERIFY no failures

  TODO

• Add NetShareEnumAll response packet with all the NDR structures (see #124).
• Replace NetShareEnumAll.parse_response with a proper logic using NDR structures.

[coveralls]

Coverage increased (+0.5%) to 94.974% when pulling 9d9f456efa5d5041f2d85edd9364f134c4536525 on chrisdlf:feature/100/dcerpc_smb1_named_pipe into 5c12e4cd26c2f73e48dc8e1b7be09748037d85b2 on rapid7:master.