Added bundled PCRE2 library.

pcre2/testdata/testoutput15

@@ -0,0 +1,17 @@
+# This test is run only when JIT support is not available. It checks that an
+# attempt to use it has the expected behaviour. It also tests things that
+# are different without JIT.
+
+/abc/I,jit,jitverify
+Capturing subpattern count = 0
+First code unit = 'a'
+Last code unit = 'c'
+Subject length lower bound = 3
+JIT support is not available in this version of PCRE2
+
+/a*/I
+Capturing subpattern count = 0
+May match empty string
+Subject length lower bound = 0
+
+# End of testinput15