Merge 'Add syntax highlighting for EXPLAIN and ANALYZE' from Alex Miller

I'm working on ANALYZE.  I'm using EXPLAIN.  The lack of highlighting
for them in the CLI annoyed me a bit.
I don't think there's any tests for this?  I'm mostly at a "it seems to
work for me".  I double checked that `EXPLAIN SELECT CASE 0 WHEN 0 THEN
0 ELSE 1` syntax highlights, to make sure  I didn't break the longer
parsing (which I had).

Closes #2741

cli/SQL.sublime-syntax

@@ -11,7 +11,7 @@ variables:
   simple_identifier_break: (?!\w)
 
   toplevel_reserved: |-
-    (?xi: alter | create | cross | delete | drop | from | grant | group | inner | insert | join
+    (?xi: alter | analyze | create | cross | delete | drop | explain | from | grant | group | inner | insert | join
     | left | on | order | outer | right | select | set | truncate | union
     | update | where )
   additional_toplevel_reserved: (?!)
@@ -75,6 +75,8 @@ contexts:
     - include: dml-statements
     - include: grant-statements
     - include: revoke-statements
+    - include: explain-statements
+    - include: analyze-statements
     - include: other-statements
 
   ###[ COMMENTS ]################################################################
@@ -560,6 +562,19 @@ contexts:
     - meta_scope: meta.statement.revoke.sql
     - include: immediately-pop
 
+  ###[ EXPLAIN STATEMENTS ]######################################################
+
+  explain-statements:
+    - match: \b(?i:explain)\b
+      scope: keyword.other.ddl.sql
+
+  ###[ ANALYZE STATEMENTS ]######################################################
+
+  analyze-statements:
+    - match: \b(?i:analyze)\b
+      scope: keyword.other.ddl.sql
+      set: expect-table-name
+
   ###[ OTHER STATEMENTS ]########################################################
 
   other-statements: []