Create symbol to get the version of this library #909

1. 
   rickmark commented at 8:59 am on March 24, 2021: none

   As the library approaches 1.0 we should provide a symbol to ask for the version of libsecp256k1

   An example such as what is provided by OpenSSL - https://www.openssl.org/docs/man1.1.0/man3/OPENSSL_VERSION_NUMBER.html

   Before the 1.0 release candidate series this can use a value of 0.8 or 0.9 to reflect the non-stable API surface

2. rickmark cross-referenced this on Mar 24, 2021 from issue Create a release by shazow
3. 
   rickmark commented at 7:54 am on March 26, 2021: none

   Created #914 for this
4. 
   real-or-random commented at 2:41 pm on May 9, 2023: contributor

   What exactly would you need this for? Some more rationale will help. I guess OpenSSL does that for a reason, but our project is much simpler.

   I don’t think there’s a strong reason not to do this, but maybe what you actually want is some kind of ABI version? Or an assert_version function instead of a get_version function?

5. real-or-random added the label feature on May 9, 2023

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rickmark real-or-random

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