Added spectags file

Command to generate the file:
cd i2p2www/pages/site && ctags -f spectags --regex-html=/\"type_\([a-zA-Z]+\)\"/\\1/t,type/ --regex-html=/\"struct_\([a-zA-Z]+\)\"/\\1/s,struct/ -R -n docs/spec/*.html

i2p2www/pages/site/spectags

+!_TAG_FILE_FORMAT	2	/extended format; --format=1 will not append ;" to lines/
+!_TAG_FILE_SORTED	1	/0=unsorted, 1=sorted, 2=foldcase/
+!_TAG_PROGRAM_AUTHOR	Darren Hiebert	/dhiebert@users.sourceforge.net/
+!_TAG_PROGRAM_NAME	Exuberant Ctags	//
+!_TAG_PROGRAM_URL	http://ctags.sourceforge.net	/official site/
+!_TAG_PROGRAM_VERSION	5.9~svn20110310	//
+Boolean	docs/spec/common-structures.html	73;"	t
+BuildRequestRecord	docs/spec/i2np.html	108;"	s
+BuildResponseRecord	docs/spec/i2np.html	277;"	s
+Certificate	docs/spec/common-structures.html	249;"	t
+Date	docs/spec/common-structures.html	50;"	t
+DeliveryInstructions	docs/spec/common-structures.html	950;"	s
+DeliveryInstructions	docs/spec/i2np.html	378;"	s
+Destination	docs/spec/common-structures.html	543;"	s
+GarlicClove	docs/spec/i2np.html	319;"	s
+Hash	docs/spec/common-structures.html	213;"	t
+Integer	docs/spec/common-structures.html	40;"	t
+Lease	docs/spec/common-structures.html	601;"	s
+LeaseSet	docs/spec/common-structures.html	646;"	s
+Mapping	docs/spec/common-structures.html	405;"	t
+MessageId	docs/spec/i2cp.html	162;"	s
+Payload	docs/spec/i2cp.html	182;"	s
+PrivateKey	docs/spec/common-structures.html	101;"	t
+PublicKey	docs/spec/common-structures.html	88;"	t
+RouterAddress	docs/spec/common-structures.html	783;"	s
+RouterIdentity	docs/spec/common-structures.html	488;"	s
+RouterInfo	docs/spec/common-structures.html	845;"	s
+SessionConfig	docs/spec/i2cp.html	204;"	s
+SessionId	docs/spec/i2cp.html	236;"	s
+SessionKey	docs/spec/common-structures.html	114;"	t
+SessionTag	docs/spec/common-structures.html	225;"	t
+Signature	docs/spec/common-structures.html	184;"	t
+SigningPrivateKey	docs/spec/common-structures.html	155;"	t
+SigningPublicKey	docs/spec/common-structures.html	126;"	t
+String	docs/spec/common-structures.html	61;"	t
+TunnelId	docs/spec/common-structures.html	237;"	t
+header	docs/spec/i2cp.html	140;"	s
+header	docs/spec/i2np.html	18;"	s
+sampleDatagrams	docs/spec/ssu.html	932;"	a