layout: Initial implementation of flex-direction: column and column-reverse (#33031)

This change removes restrictions on using the column layout mode of
flexbox and adds an initial implementation of sizing for that flex
direction. There's a lot of missing pieces still, but in some cases this
does render column flexbox.

In particular, there are now two code paths for preferred widths
(intrinsic size) calcuation: one in the main axis (row) and one in
the cross axis (column) corresponding to the flex direciton with
horizontal writing modes.

In addition, `FlexItemBox::inline_content_sizes` is removed in favor of
making `sizing::outer_inline` /
`IndependentFormattingContext::outer_inline_content_sizes` generic
enough to handle using a different value for auto minimum sizes, which
flexbox needs.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Oriol Brufau <obrufau@igalia.com>

tests/wpt/meta/css/css-flexbox/alignment/flex-align-baseline-001.html.ini

@@ -13,6 +13,3 @@
 
   [#target > div 6]
     expected: FAIL
-
-  [#target > div 4]
-    expected: FAIL

tests/wpt/meta/css/css-flexbox/alignment/flex-align-baseline-006.html.ini

@@ -1,3 +1,9 @@
 [flex-align-baseline-006.html]
   [#target > div 3]
     expected: FAIL
+
+  [#target > div 1]
+    expected: FAIL
+
+  [#target > div 2]
+    expected: FAIL

tests/wpt/meta/css/css-flexbox/alignment/flex-align-baseline-007.html.ini

@@ -1,3 +1,9 @@
 [flex-align-baseline-007.html]
   [#target > div 3]
     expected: FAIL
+
+  [#target > div 1]
+    expected: FAIL
+
+  [#target > div 2]
+    expected: FAIL

tests/wpt/meta/css/css-flexbox/alignment/flex-align-baseline-flex-001.html.ini

@@ -49,3 +49,9 @@
 
   [.target > * 25]
     expected: FAIL
+
+  [.target > * 43]
+    expected: FAIL
+
+  [.target > * 47]
+    expected: FAIL