Problem:

If the first page (page 0) of the single table tablespace is corrupted in the
data file then our recovery doesn't progress even if there is a clean copy of
the same available in the double write buffer.  

Analysis:

During recovery, our first step is to process the double write buffer.  We look
at the pages in the double write buffer and determine its (space_id, page_no)
details.  Each of the page in the double write buffer corresponds to a page in
the .ibd data file.  Using the space_id information we need to map the page in
the double write buffer to the corresponding ibd file.  This is done by reading
the space_id information from the first page of the single table tablespace.
If the first page of the single table tablespace is corrupted, then we are
unable to determine the data file to which a particular page in the double
write buffer belongs to.  So we need to explore and see if we can determine the
space_id in other means.

Solution:

Assume a particular page size.  Read N number of pages from the ibd file.
Ignore the corrupted pages and determine the (space_id, page_size and zip_size)
information.  Repeat this for all supported page sizes.  Using this approach
determine the correct (space_id, page_size and zip_size) of the ibd file.

rb#4025 approved by Yasufumi.