to reduce netdb lookups

Only throttle messages 1 and 2
Send limit response on throttle
Throttle IPv6 based on first 8 bytes only

Allow lookups of our RI even when hidden
Consolidate routerHash() calls
Remove unused router.publishUnreachableRouters option, was default true

jbigi for Apple silicon

See merge request !63

Add ability to apply patches to GMP.  Apply fix for x18 register.  Run GMP tests after build.

See merge request !62

JBigi build changes for M1

See merge request !60

Just iterate through the main map.
Log tweaks

Expire relay token quickly
Log tweaks

Fix setting local IPv6 MTU when firewalled
Fix publishing MTU when firewalled or hidden
Save local MTU when changing addresses, not when publishing
Add SSU2 MTU methods (no mod 16 required)
Allow MTU up to 1500 for SSU2 transport style
Disable SSU2 at startup if local MTU too low

see gitlab MR !59

Add code for bob rejecting alice peer test address
Don't allow MTU to exceed his MTU
Don't use a token about to expire
Send token with termination message
Add internal type to termination message
log tweaks

to make it more responsive to conditions and a more effective PMTU algorithm.
Move MTU up and down in increments rather than simply shift between min and max
Increase or decrease based on success or failure of each message
Only increase if the successful message was almost as large as current MTU
Clear increase/decrease counters when changing MTU the other way
Don't wait for 10 packets to increase MTU
Reduce max retransmissions from 30% to 10%

see earlier checkin for public keys

so as not to exceed MTU

Prefer SSU2 introducers for slots 1 and 2
log tweaks

Needed for SSU2 handshakes

use in OrderedProperties

Caused SusiDNS and addressbook to be in a different context
addressbook config would be stored in base dir
and subscriptions would not load because it couldn't find i2ptunnel

in SigUtil.fromJavaKey()
as the class does not define equals().
Affects Android family key loading where the class does not match our class.
Tested via unit test to compare provider class sun.security.util.NamedCurve
to our class java.security.spec.ECParameterSpec, untested on Android.
Add conversion test to CertUtil loadcert CLI.
ref: http://zzz.i2p/topics/3328
ref: i2p.android.base gitlab ticket #47

Was never used; prep for actual usage
Move from router to core
Add Set constructors that are more efficient
Add addUnique() method
Allow size of set passed in constructors
Prepare for extension
javadocs

Validate and process hole punch payload
Send session request immediately after receiving hole punch
Remove some unused code
Log tweaks

Fix conn ids on hole punch
Fix min size on relay response

Enable relay
Set session created token to 0 as per spec
Log tweaks

Fix sending charlie's address in relay response
Fix sending session request after introduction
Send 0-length endpoint in relay response on failure
Log tweaks