Rename all getters to use get/get0 in name

For functions that exist in 1.1.1 provide a simple aliases via #define.

Fixes #15236

Functions with OSSL_DECODER_, OSSL_ENCODER_, OSSL_STORE_LOADER_,
EVP_KEYEXCH_, EVP_KEM_, EVP_ASYM_CIPHER_, EVP_SIGNATURE_,
EVP_KEYMGMT_, EVP_RAND_, EVP_MAC_, EVP_KDF_, EVP_PKEY_,
EVP_MD_, and EVP_CIPHER_ prefixes are renamed.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15405)

crypto/pkcs7/pk7_lib.c

diff --git a/crypto/pkcs7/pk7_lib.c b/crypto/pkcs7/pk7_lib.c
index a4b62f4..c32a666 100644
--- a/crypto/pkcs7/pk7_lib.c
+++ b/crypto/pkcs7/pk7_lib.c
@@ -316,7 +316,7 @@
         hnid = OBJ_obj2nid(alg1->algorithm);
         if (hnid == NID_undef)
             return -1;
-        if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey)))
+        if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_get_id(pkey)))
             return -1;
         X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0);
     }
@@ -362,7 +362,7 @@
 
     /* Set the algorithms */
 
-    X509_ALGOR_set0(p7i->digest_alg, OBJ_nid2obj(EVP_MD_type(dgst)),
+    X509_ALGOR_set0(p7i->digest_alg, OBJ_nid2obj(EVP_MD_get_type(dgst)),
                     V_ASN1_NULL, NULL);
 
     if (EVP_PKEY_is_a(pkey, "EC") || EVP_PKEY_is_a(pkey, "DSA"))
@@ -689,7 +689,7 @@
     }
 
     /* Check cipher OID exists and has data in it */
-    i = EVP_CIPHER_type(cipher);
+    i = EVP_CIPHER_get_type(cipher);
     if (i == NID_undef) {
         ERR_raise(ERR_LIB_PKCS7, PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
         return 0;