Replaces MockInvokeContext by ThisInvokeContext in tests (#20881)

* Replaces MockInvokeContext by ThisInvokeContext in BpfLoader, SystemInstructionProcessor, CLIs, ConfigProcessor, StakeProcessor and VoteProcessor.

* Finally, removes MockInvokeContext, MockComputeMeter and MockLogger.

* Adjusts assert_instruction_count test.

* Moves ThisInvokeContext to the program-runtime crate.

programs/bpf/Cargo.lock

@@ -2566,6 +2566,7 @@ dependencies = [
  "solana-cli-output",
  "solana-logger 1.9.0",
  "solana-measure",
+ "solana-program-runtime",
  "solana-runtime",
  "solana-sdk",
  "solana-transaction-status",
@@ -3230,6 +3231,7 @@ dependencies = [
 name = "solana-program-runtime"
 version = "1.9.0"
 dependencies = [
+ "bincode",
  "libc",
  "libloading",
  "log",
@@ -3438,6 +3440,7 @@ dependencies = [
  "solana-frozen-abi 1.9.0",
  "solana-frozen-abi-macro 1.9.0",
  "solana-metrics",
+ "solana-program-runtime",
  "solana-sdk",
  "solana-vote-program",
  "thiserror",