Sparse notes on major existing problems/plans

* SMI issues remained include:

  1) multiple OID registration should be posible for
     customizing Managed Objects classes
  2) in MIBVIEW object model: MIB module name, MIB object
     name and object instance should be clearly separated.
     Dedicated, simple API for table cells mangling should be
     provided.

* Walking over VACM shadowed OIDs is painfully slow

* Notification filtering (RFC3413) not implemented.

* MsgAndPduDispatcher should use TransportDispatcher jobs interface
  to handle SNMPv3 handshake

* Implement prettyIn value format parser at TC

* Disallow SNMP access to USM objects

* Maybe MibInstrumentationController should be async what
  implies callback function interface.

* Re-work ACL to get rid of linear search there

* Implement partial context name match at isAccessAllowed()

* Sort out whether pyasn1 objects should probably have either clone() or
  subtype() methods.

* Review PDU components coercion code at proxy/rfc2576

* TextualConvention subclassing order now depends upon DisplayHint
  clause presense in MIB definition (for useful prettyIn/Out()). Maybe
  this should be re-worked.

* exclude SNMP-COMMUNITY-MIB from view for better security

* re-design something to get rid of an ugly hack coercing MIB values into
  SNMP message header as it has incompatible constraints set

* Implement OID prefix to MIB module mapping then dynamic MIB modules
  loading on OID to MIB symbol resolution

* Implement TCP transport support

* Rework UNIX sockets transport to make it STREAM-type.

* The get-first/get-last operations of pysnmp.smi.rfc1902.ObjectIdentity()
  may need a means to deal only with specific node types.

* redesign proto.errind.ErrorIndication

* redesign PYSNMP MIB tables to better handle optional values (keys)

* add RowStatus checks when reading MIB tables (LCD)

* Disallow empty SET value reaching scalar MIB object

* Figure out why .getUnitis() are not propagated from SNMPv2-SMI::ObjectType to response object

* Extent pysmi/mibdump tool to produce MIB instances from ASN.1 MIBs

* Write a tool that parses iana-private-enterprise numbers into a pysnmp MIB instance

* Make mibdump producing OID->MIB indices in form of pysnmp MIB instance and JSON

* Write a helper function/module based on pysnmp that reports device details based on SNMP data.
  In particular: description, vendor ID/name (sysObjectID), implemented MIBs (sysORTable)
