added Paul's proposal for metadata

metadataProposal.txt

+Byte 0 - 10: File header identifier, ASCII: 'CAMRAS SETI'
+
+Byte 11: Useless separator, ' '
+
+Byte 12 - 15: Header version number ASCII, currently 'v0.1'
+
+Byte 16 - 23: Time of first sample: make this a 64 bit number of
+integer
+seconds since the Unix epoch (8 bytes). Recordings start on integer
+seconds.
+
+Byte 24- 27: Right Ascension, 32 bit floating point number in IEEE-754
+
+single precision format, in radians.
+
+Byte 28 - 31: Declination, 32 bit floating point number in IEEE-754
+single precision format, in radians.
+
+Byte 32 - 39: Recording center Frequency in Hz: double precision
+floating point number, IEE-754.
+
+Byte 40 - 43: Sample Rate, in Hz. uin32_t format. We only support
+integer sample rates in Hz.
+
+Byte 44: Bits per sample: uint8_t (currently 1)
+
+Byte 45: Recording format, 1 char. 'I' for interleaved IQ, 'R' for
+real
+samples. Should normally be an 'I'.
+
+Byte 46: Polarization, 1 char, 'L', 'R', 'H' or 'V'
+
+Byte 47: Antenna number, uint8_t (Currently: L-band = 1, UHF = 2, 0 =
+undefined)
+
+Byte 48: Beam number, uint8_t (usually 0)
+
+Byte 49 - 1023: ASCII text for remarks, room for expansion in future
+header versions.