Start adding support for FIPS sepcific features

[simo5]

Adds attributes needed to deal with FIPS Indicators.

This will only be standardized in PKCS#11 3.2 so for now this is a Draft PR.

Resolves #46

[simo5]

@Jakuje although this is still a draft, would you mind taking a look at the general approach and let me know what you think?

[simo5]

coverity found an issue:

*** CID 496758:  Memory - illegal accesses  (OVERRUN)
/src/provider.c: 1203 in p11prov_query_operation()
1197     p11prov_query_operation(void *provctx, int operation_id, int *no_cache)
1198     {
1199         P11PROV_CTX *ctx = (P11PROV_CTX *)provctx;
1200    
1201         if (operation_id > OSSL_OP__HIGHEST
1202             || ctx->blocked_ops[operation_id] == true) {
>>>     CID 496758:  Memory - illegal accesses  (OVERRUN)
>>>     Overrunning array "p11prov_block_ops_names" of 23 8-byte elements at element index 23 (byte offset 191) using index "operation_id" (which evaluates to 23).
1203             P11PROV_debug("Blocked operation: %s (%d)",
1204                           p11prov_block_ops_names[operation_id], operation_id);
1205             *no_cache = 0;
1206             return NULL;
1207         }
1208 

Will adjust the debug statement to not overflow the struct.