[Refactor] Move tier two managers initialization from init.cpp to tiertwo/init.cpp

[furszy]

It's primarily a move-only refactoring, breaking up a bit more the long monolithic init.cpp. Placing the tier two components initialization in a separate tiertwo/init.cpp file.

This will make future inclusions easier, like #2647 introducing the new tier two MN metadata manager and the network sync requests manager.

And, as an extra cleanup, removed the broken litemode flag. Because, as is now, it simply makes no sense.. it's a "turn this on to fork your node".

[random-zebra]

Needs rebase. Otherwise concept/code ACK.

[furszy]

rebased, conflicts solved.

[random-zebra]

ACK bacd38b

[Fuzzbawls]

Concept ACK, just a couple minor things; -litemode is still in the help output and the new tiertwo subdir needs to be added to CLEANFILES (could also take this opportunity to add the bls subdir too, as that was missed previously):

Index: src/init.cpp
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/init.cpp b/src/init.cpp
--- a/src/init.cpp	(revision 2518feb15e0cbd58673fc9d8d8a8d125e9b9cfd6)
+++ b/src/init.cpp	(date 1639885892832)
@@ -513,7 +513,6 @@
     }
     strUsage += HelpMessageOpt("-shrinkdebugfile", "Shrink debug.log file on client startup (default: 1 when no -debug)");
     AppendParamsHelpMessages(strUsage, showDebug);
-    strUsage += HelpMessageOpt("-litemode=<n>", strprintf("Disable all PIVX specific functionality (Masternodes, Budgeting) (0-1, default: %u)", 0));
 
     strUsage += HelpMessageGroup("Masternode options:");
     strUsage += HelpMessageOpt("-masternode=<n>", strprintf("Enable the client to act as a masternode (0-1, default: %u)", DEFAULT_MASTERNODE));
Index: src/Makefile.am
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/Makefile.am b/src/Makefile.am
--- a/src/Makefile.am	(revision 2518feb15e0cbd58673fc9d8d8a8d125e9b9cfd6)
+++ b/src/Makefile.am	(date 1639887276581)
@@ -746,6 +746,7 @@
 CLEANFILES += script/*.gcda script/*.gcno
 CLEANFILES += support/*.gcda support/*.gcno
 CLEANFILES += test/librust/*.gcda test/librust/*.gcno
+CLEANFILES += tiertwo/*.gcda tiertwo/*.gcno
 CLEANFILES += univalue/*.gcda univalue/*.gcno
 CLEANFILES += util/*.gcda util/*.gcno
 CLEANFILES += wallet/*.gcda wallet/*.gcno

[furszy]

done, removed the litemode help message and added the tiertwo and bls dirs paths to the build system clean function.

[random-zebra]

diff utACK d1fffb5

[Fuzzbawls]

ACK d1fffb5