Definition for a pool of strings. The data of this chunk is an
array of uint32_t providing indices into the pool, relative to
stringsStart. At stringsStart are all of the UTF-16 strings
concatenated together; each starts with a uint16_t of the string's
length and each ends with a 0x0000 terminator. If a string is >
32767 characters, the high bit of the length is set meaning to take
those 15 bits as a high word and it will be followed by another
uint16_t containing the low word.
If styleCount is not zero, then immediately following the array of
uint32_t indices into the string table is another array of indices
into a style table starting at stylesStart. Each entry in the
style table is an array of ResStringPool_span structures.