Move all module code to segregated namespace under packages/

Move all module code that will be loaded under packages/ -- while
also structuring their filesystem layout as distributions. This
should make it easier to keep track of what namespaces a given
`use lib ...` is bringing in.

For modules under packages/Test we not only create the distribution
file layout, but also add a META6.json. When using e.g. Test::Util
you load it via `packages/Test-Helpers`. This is slightly different
than all the other ad-hoc modules where you include via
`packages/Some-Name/lib` ( note the /lib ). This means we are testing
areas of the CUR system that were not tested at all before.

Author: ugexe

APPENDICES/A01-limits/misc.t

@@ -1,6 +1,6 @@
 use v6;
-use lib $?FILE.IO.parent(3).add: 'packages';
 use Test;
+use lib $?FILE.IO.parent(3).add: 'packages/Test-Helpers';
 use Test::Util;
 
 plan 3;

APPENDICES/A01-limits/overflow.t

@@ -1,5 +1,5 @@
 use v6;
-use lib $?FILE.IO.parent(3).add("packages");
+use lib $?FILE.IO.parent(3).add("packages/Test-Helpers");
 use Test;
 use Test::Util;
 

APPENDICES/A02-some-day-maybe/misc.t

@@ -1,6 +1,6 @@
 use v6;
-use lib $?FILE.IO.parent(3).add: 'packages';
 use Test;
+use lib $?FILE.IO.parent(3).add: 'packages/Test-Helpers';
 use Test::Util;
 
 # The tests in this file ensure certain constructs die with a decent error

APPENDICES/A03-older-specs/01-misc.t

@@ -1,6 +1,6 @@
 use v6.c;
-use lib $?FILE.IO.parent(3).add: 'packages';
 use Test;
+use lib $?FILE.IO.parent(3).add: 'packages/Test-Helpers';
 use Test::Util;
 
 plan 9;

APPENDICES/A04-experimental/01-misc.t

@@ -1,6 +1,6 @@
 use v6.c;
-use lib $?FILE.IO.parent(3).add: 'packages';
 use Test;
+use lib $?FILE.IO.parent(3).add: 'packages/Test-Helpers';
 use Test::Util;
 
 plan 19;

MISC/bug-coverage-6.d.t

@@ -1,5 +1,5 @@
 use v6.d.PREVIEW;
-use lib $?FILE.IO.parent(2).add("packages");
+use lib $?FILE.IO.parent(2).add("packages/Test-Helpers");
 use Test;
 use Test::Util;
 

MISC/bug-coverage-stress-6.d.t

@@ -1,5 +1,5 @@
 use v6.d.PREVIEW;
-use lib $?FILE.IO.parent(2).add("packages");
+use lib $?FILE.IO.parent(2).add("packages/Test-Helpers");
 use Test;
 use Test::Util;
 

MISC/bug-coverage-stress.t

@@ -1,8 +1,10 @@
 use v6.c;
-use lib $?FILE.IO.parent(2).add("packages");
 use Test;
+use lib $?FILE.IO.parent(2).add("packages/Test-Helpers");
 use Test::Util;
 
+use lib $?FILE.IO.parent(2).add("packages/RAKUDO1413/lib");
+
 # This file is for random bugs that don't really fit well in other places
 # or ones that need to be only part of strestest and not spectest.
 # Feel free to move the tests to more appropriate places.

MISC/bug-coverage.t

@@ -1,6 +1,6 @@
 use v6.c;
-use lib $?FILE.IO.parent(2).add("packages");
 use Test;
+use lib $?FILE.IO.parent(2).add("packages/Test-Helpers");
 use Test::Util;
 
 # This file is for random bugs that don't really fit well in other places.

MISC/misc-6.d.t

@@ -1,5 +1,5 @@
 use v6.d.PREVIEW;
-use lib $?FILE.IO.parent(2).add: 'packages';
+use lib $?FILE.IO.parent(2).add: 'packages/Test-Helpers';
 use Test;
 use Test::Util;